Organization record
WESTELL TECHNOLOGIES, 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": 1920000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_payable | {"amount": 1379000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_payable | {"amount": 2214000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_payable | {"amount": 2247000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_payable | {"amount": 1065000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_payable | {"amount": 2821000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_payable | {"amount": 2742000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_payable | {"amount": 2250000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 2313000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 2936000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 2822000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 2256000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 1903000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 2494000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 3210000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 5027000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 4163000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 6417000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 4619000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 5087000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 7856000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 7288000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 7643000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 7004000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 4011000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 4536000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 6598000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 8205000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 7508000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 6471000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 10502000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 6906000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 4126000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 4116000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 2998000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 3033000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 3142000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 4063000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 10258000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 9508000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 23664000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-03-31 | sec_edgar |
| accounts_receivable | {"amount": 4492000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_receivable | {"amount": 4923000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_receivable | {"amount": 4511000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 4899000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 4047000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 4933000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 5033000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 5806000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 6865000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 6980000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 6957000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 10571000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 8872000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 11070000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 11038000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 10337000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 12075000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 11212000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 13639000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 10885000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 16361000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12626000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 17130000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 14452000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 11845000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 7132000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 11925000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 16913000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 15831000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12357000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 21369000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12881000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 6689000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 4936000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 5944000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 6056000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 5710000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 5426000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 17900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 19195000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 24252000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-03-31 | sec_edgar |
| capex | {"amount": 72000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2021-03-31 | sec_edgar |
| capex | {"amount": 73000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2020-12-31 | sec_edgar |
| capex | {"amount": 73000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2020-09-30 | sec_edgar |
| capex | {"amount": 23000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2020-06-30 | sec_edgar |
| capex | {"amount": 185000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2020-03-31 | sec_edgar |
| capex | {"amount": 113000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2019-12-31 | sec_edgar |
| capex | {"amount": 59000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2019-09-30 | sec_edgar |
| capex | {"amount": 14000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2019-06-30 | sec_edgar |
| capex | {"amount": 290000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2019-03-31 | sec_edgar |
| capex | {"amount": 273000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-12-31 | sec_edgar |
| capex | {"amount": 153000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-09-30 | sec_edgar |
| capex | {"amount": 50000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2018-06-30 | sec_edgar |
| capex | {"amount": 408000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-03-31 | sec_edgar |
| capex | {"amount": 261000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-12-31 | sec_edgar |
| capex | {"amount": 254000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-09-30 | sec_edgar |
| capex | {"amount": 155000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-06-30 | sec_edgar |
| capex | {"amount": 596000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-03-31 | sec_edgar |
| capex | {"amount": 527000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2016-12-31 | sec_edgar |
| capex | {"amount": 498000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2016-09-30 | sec_edgar |
| capex | {"amount": 396000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2016-06-30 | sec_edgar |
| capex | {"amount": 1932000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-03-31 | sec_edgar |
| capex | {"amount": 1776000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-12-31 | sec_edgar |
| capex | {"amount": 1530000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-09-30 | sec_edgar |
| capex | {"amount": 455000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2015-06-30 | sec_edgar |
| capex | {"amount": 2137000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-03-31 | sec_edgar |
| capex | {"amount": 1773000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-12-31 | sec_edgar |
| capex | {"amount": 1155000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-09-30 | sec_edgar |
| capex | {"amount": 723000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-06-30 | sec_edgar |
| capex | {"amount": 443000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-03-31 | sec_edgar |
| capex | {"amount": 399000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2013-12-31 | sec_edgar |
| capex | {"amount": 234000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2013-09-30 | sec_edgar |
| capex | {"amount": 83000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2013-06-30 | sec_edgar |
| capex | {"amount": 379000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2013-03-31 | sec_edgar |
| capex | {"amount": 320000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2012-12-31 | sec_edgar |
| capex | {"amount": 171000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2012-09-30 | sec_edgar |
| capex | {"amount": 51000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-06-30 | sec_edgar |
| capex | {"amount": 819000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2012-03-31 | sec_edgar |
| capex | {"amount": 779000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-12-31 | sec_edgar |
| capex | {"amount": 697000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-09-30 | sec_edgar |
| capex | {"amount": 335000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-06-30 | sec_edgar |
| capex | {"amount": 785000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-03-31 | sec_edgar |
| capex | {"amount": 485000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-12-31 | sec_edgar |
| capex | {"amount": 359000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-09-30 | sec_edgar |
| capex | {"amount": 142000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-06-30 | sec_edgar |
| capex | {"amount": 948000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 16884000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2021-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 14756000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 21459000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 21917000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 20869000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 21990000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 21716000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 24077000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 25457000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 27065000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 28471000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 24497000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 24963000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 21492000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 19200000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 23688000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 21778000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 23842000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 20917000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 15178000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 19169000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 33559000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 32878000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 20847000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 14026000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 17699000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 27920000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 33689000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 35793000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 69649000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 68751000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 62871000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 88233000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 89823000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 96427000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 108819000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 120832000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 121252000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 89026000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 102331000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 86408000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
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| cash_and_equivalents | {"amount": 61771000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 61315000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 46058000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-03-31 | sec_edgar |
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| cashflow_financing | {"amount": -558000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2017-12-31 | sec_edgar |
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