Organization record
PERFICIENT INC
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| accounts_payable | {"amount": 15083000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_payable | {"amount": 13919000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_payable | {"amount": 18688000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| accounts_payable | {"amount": 15307000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-09-30 | sec_edgar |
| accounts_payable | {"amount": 16220000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-06-30 | sec_edgar |
| accounts_payable | {"amount": 14529000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-03-31 | sec_edgar |
| accounts_payable | {"amount": 24351000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| accounts_payable | {"amount": 19300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-09-30 | sec_edgar |
| accounts_payable | {"amount": 20588000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-06-30 | sec_edgar |
| accounts_payable | {"amount": 22241000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-03-31 | sec_edgar |
| accounts_payable | {"amount": 26074000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| accounts_payable | {"amount": 19168000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-09-30 | sec_edgar |
| accounts_payable | {"amount": 26167000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_payable | {"amount": 16150000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_payable | {"amount": 25613000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_payable | {"amount": 16519000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_payable | {"amount": 16085000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_payable | {"amount": 15498000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_payable | {"amount": 23081000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_payable | {"amount": 14473000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_payable | {"amount": 15914000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 12661000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 24437000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 10801000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 14495000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 11146000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 23196000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 11992000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 12044000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 9984000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 18416000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 13485000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 14812000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 12736000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 18793000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 13768000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 11160000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 10901000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 22035000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 13532000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 13088000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 6674000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 7667000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 6205000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 11291000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 6521000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 7959000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 7538000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 4940000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 4440000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 5029000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 4033000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 3289000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 6072000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_receivable | {"amount": 96100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_receivable | {"amount": 97600000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_receivable | {"amount": 119900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-12-31 | sec_edgar |
| accounts_receivable | {"amount": 107700000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-09-30 | sec_edgar |
| accounts_receivable | {"amount": 104300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-06-30 | sec_edgar |
| accounts_receivable | {"amount": 105100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-03-31 | sec_edgar |
| accounts_receivable | {"amount": 134500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-12-31 | sec_edgar |
| accounts_receivable | {"amount": 111899000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-09-30 | sec_edgar |
| accounts_receivable | {"amount": 115547000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-06-30 | sec_edgar |
| accounts_receivable | {"amount": 102520000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-03-31 | sec_edgar |
| accounts_receivable | {"amount": 120892000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-12-31 | sec_edgar |
| accounts_receivable | {"amount": 101857000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-09-30 | sec_edgar |
| accounts_receivable | {"amount": 87920000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_receivable | {"amount": 81866000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_receivable | {"amount": 85998000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_receivable | {"amount": 85354000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 78023000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 77313000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 87021000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 77872000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 74231000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 64192000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 87347000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 109764000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 107286000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 108358000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 112194000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 108090000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 100624000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 87650000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 103702000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 106455000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 109412000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 116428000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 120612000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 111894000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 96734000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 99427000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 113928000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 117304000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 102227000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 86242000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 78887000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 83435000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 85922000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 71296000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 69662000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 78091000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 74847000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 66092000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 60892000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 62626000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 58308000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 48496000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| capex | {"amount": 2568000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2024-06-30 | sec_edgar |
| capex | {"amount": 319000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2024-03-31 | sec_edgar |
| capex | {"amount": 4439000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2023-12-31 | sec_edgar |
| capex | {"amount": 4209000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2023-09-30 | sec_edgar |
| capex | {"amount": 3200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2023-06-30 | sec_edgar |
| capex | {"amount": 1015000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2023-03-31 | sec_edgar |
| capex | {"amount": 8955000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2022-12-31 | sec_edgar |
| capex | {"amount": 7019000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2022-09-30 | sec_edgar |
| capex | {"amount": 6240000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2022-06-30 | sec_edgar |
| capex | {"amount": 2472000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2022-03-31 | sec_edgar |
| capex | {"amount": 9244000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-12-31 | sec_edgar |
| capex | {"amount": 5892000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-09-30 | sec_edgar |
| capex | {"amount": 3623000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-06-30 | sec_edgar |
| capex | {"amount": 1480000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-03-31 | sec_edgar |
| capex | {"amount": 5266000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2020-12-31 | sec_edgar |
| capex | {"amount": 3880000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2020-09-30 | sec_edgar |
| capex | {"amount": 2447000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2020-06-30 | sec_edgar |
| capex | {"amount": 1513000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2020-03-31 | sec_edgar |
| capex | {"amount": 8082000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-12-31 | sec_edgar |
| capex | {"amount": 6466000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-09-30 | sec_edgar |
| capex | {"amount": 3440000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-06-30 | sec_edgar |
| capex | {"amount": 1312000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-03-31 | sec_edgar |
| capex | {"amount": 4084000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-12-31 | sec_edgar |
| capex | {"amount": 3182000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-09-30 | sec_edgar |
| capex | {"amount": 1564000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-06-30 | sec_edgar |
| capex | {"amount": 873000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-03-31 | sec_edgar |
| capex | {"amount": 3361000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-12-31 | sec_edgar |
| capex | {"amount": 2521000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-09-30 | sec_edgar |
| capex | {"amount": 2112000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-06-30 | sec_edgar |
| capex | {"amount": 461000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-03-31 | sec_edgar |
| capex | {"amount": 4087000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-12-31 | sec_edgar |
| capex | {"amount": 3575000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-09-30 | sec_edgar |
| capex | {"amount": 2356000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-06-30 | sec_edgar |
| capex | {"amount": 1044000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-03-31 | sec_edgar |
| capex | {"amount": 3356000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-12-31 | sec_edgar |
| capex | {"amount": 2462000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-09-30 | sec_edgar |
| capex | {"amount": 1655000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-06-30 | sec_edgar |
| capex | {"amount": 530000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2015-03-31 | sec_edgar |
| capex | {"amount": 3674000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-12-31 | sec_edgar |
| capex | {"amount": 2632000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-09-30 | sec_edgar |
| capex | {"amount": 1710000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-06-30 | sec_edgar |
| capex | {"amount": 697000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-03-31 | sec_edgar |
| capex | {"amount": 4649000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-12-31 | sec_edgar |
| capex | {"amount": 4282000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-09-30 | sec_edgar |
| capex | {"amount": 3003000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-06-30 | sec_edgar |
| capex | {"amount": 2263000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-03-31 | sec_edgar |
| capex | {"amount": 1923000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-12-31 | sec_edgar |
| capex | {"amount": 1391000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-09-30 | sec_edgar |
| capex | {"amount": 844000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2012-06-30 | sec_edgar |
| capex | {"amount": 355000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2012-03-31 | sec_edgar |
| capex | {"amount": 2776000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-12-31 | sec_edgar |
| capex | {"amount": 2393000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-09-30 | sec_edgar |
| capex | {"amount": 1728000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-06-30 | sec_edgar |
| capex | {"amount": 630000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-03-31 | sec_edgar |
| capex | {"amount": 1161000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-12-31 | sec_edgar |
| capex | {"amount": 816000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-09-30 | sec_edgar |
| capex | {"amount": 494000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-06-30 | sec_edgar |
| capex | {"amount": 415000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 44984000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 44947000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 10359000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 5484000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 6307000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 2448000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 5692000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 10887000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 10113000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 9321000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 9490000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 9016000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 8811000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 8692000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6839000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6353000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 10935000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 5411000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6632000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4731000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 7018000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 5439000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4678000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4148000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 5813000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3481000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4233000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 2654000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 9732000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 1959000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 12494000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 9410000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 12707000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 13861000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-09-30 | sec_edgar |