Organization record
TENNANT CO
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": 112900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| accounts_payable | {"amount": 123100000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2026-03-31 | sec_edgar |
| accounts_payable | {"amount": 127500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| accounts_payable | {"amount": 110600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-09-30 | sec_edgar |
| accounts_payable | {"amount": 122300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-06-30 | sec_edgar |
| accounts_payable | {"amount": 115300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-03-31 | sec_edgar |
| accounts_payable | {"amount": 126900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| accounts_payable | {"amount": 128000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-09-30 | sec_edgar |
| accounts_payable | {"amount": 128700000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_payable | {"amount": 124900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_payable | {"amount": 111400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| accounts_payable | {"amount": 98500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-09-30 | sec_edgar |
| accounts_payable | {"amount": 113000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-06-30 | sec_edgar |
| accounts_payable | {"amount": 117600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-03-31 | sec_edgar |
| accounts_payable | {"amount": 126100000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| accounts_payable | {"amount": 110000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-09-30 | sec_edgar |
| accounts_payable | {"amount": 120400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-06-30 | sec_edgar |
| accounts_payable | {"amount": 120000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-03-31 | sec_edgar |
| accounts_payable | {"amount": 121500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| accounts_payable | {"amount": 117400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-09-30 | sec_edgar |
| accounts_payable | {"amount": 118500000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_payable | {"amount": 104800000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_payable | {"amount": 106300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_payable | {"amount": 86000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_payable | {"amount": 77400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_payable | {"amount": 95800000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_payable | {"amount": 94100000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_payable | {"amount": 93900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_payable | {"amount": 98700000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 94900000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 98400000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 90778000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 103602000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 102702000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 96082000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 88618000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 88572000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 49521000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 47408000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 44997000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 49838000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 46568000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 50350000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 54394000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 59735000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 56758000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 61627000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 57896000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 60122000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 54409000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 53079000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 49295000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 52763000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 51580000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 47002000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 43537000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 49039000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 44238000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 46869000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 51499000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 55667000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 40498000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_receivable | {"amount": 286300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2026-06-30 | sec_edgar |
| accounts_receivable | {"amount": 280600000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2026-03-31 | sec_edgar |
| accounts_receivable | {"amount": 256800000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-12-31 | sec_edgar |
| accounts_receivable | {"amount": 249300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-09-30 | sec_edgar |
| accounts_receivable | {"amount": 265300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-06-30 | sec_edgar |
| accounts_receivable | {"amount": 251200000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-03-31 | sec_edgar |
| accounts_receivable | {"amount": 259100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2024-12-31 | sec_edgar |
| accounts_receivable | {"amount": 260200000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2024-09-30 | sec_edgar |
| accounts_receivable | {"amount": 268800000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2024-06-30 | sec_edgar |
| accounts_receivable | {"amount": 257300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2024-03-31 | sec_edgar |
| accounts_receivable | {"amount": 247600000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-12-31 | sec_edgar |
| accounts_receivable | {"amount": 241900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-09-30 | sec_edgar |
| accounts_receivable | {"amount": 263500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-06-30 | sec_edgar |
| accounts_receivable | {"amount": 254300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2023-03-31 | sec_edgar |
| accounts_receivable | {"amount": 251500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-12-31 | sec_edgar |
| accounts_receivable | {"amount": 219300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-09-30 | sec_edgar |
| accounts_receivable | {"amount": 215700000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-06-30 | sec_edgar |
| accounts_receivable | {"amount": 199500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2022-03-31 | sec_edgar |
| accounts_receivable | {"amount": 211400000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-12-31 | sec_edgar |
| accounts_receivable | {"amount": 198400000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-09-30 | sec_edgar |
| accounts_receivable | {"amount": 207600000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-06-30 | sec_edgar |
| accounts_receivable | {"amount": 190100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2021-03-31 | sec_edgar |
| accounts_receivable | {"amount": 199900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2020-12-31 | sec_edgar |
| accounts_receivable | {"amount": 198000000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 180300000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 203800000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 216500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 204900000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 222100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 204200000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 208000000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 203280000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 193725000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 199861000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 137383000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 149134000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 135458000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 154609000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 134243000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 140445000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 137230000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 151146000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 134029000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 152383000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 141771000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 158338000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 143957000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 140182000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 131470000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 123920000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2011-12-31 | sec_edgar |
| capex | {"amount": 8500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2026-06-30 | sec_edgar |
| capex | {"amount": 3200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2026-03-31 | sec_edgar |
| capex | {"amount": 21700000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-12-31 | sec_edgar |
| capex | {"amount": 17200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-09-30 | sec_edgar |
| capex | {"amount": 10800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-06-30 | sec_edgar |
| capex | {"amount": 7000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2025-03-31 | sec_edgar |
| capex | {"amount": 20900000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2024-12-31 | sec_edgar |
| capex | {"amount": 11500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2024-09-30 | sec_edgar |
| capex | {"amount": 7200000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2024-06-30 | sec_edgar |
| capex | {"amount": 3000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2024-03-31 | sec_edgar |
| capex | {"amount": 22800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2023-12-31 | sec_edgar |
| capex | {"amount": 15300000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2023-09-30 | sec_edgar |
| capex | {"amount": 11800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2023-06-30 | sec_edgar |
| capex | {"amount": 6800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2023-03-31 | sec_edgar |
| capex | {"amount": 25000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-12-31 | sec_edgar |
| capex | {"amount": 19400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-09-30 | sec_edgar |
| capex | {"amount": 10500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-06-30 | sec_edgar |
| capex | {"amount": 5000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2022-03-31 | sec_edgar |
| capex | {"amount": 19400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-12-31 | sec_edgar |
| capex | {"amount": 12000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-09-30 | sec_edgar |
| capex | {"amount": 8000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-06-30 | sec_edgar |
| capex | {"amount": 4800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2021-03-31 | sec_edgar |
| capex | {"amount": 29900000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-12-31 | sec_edgar |
| capex | {"amount": 25500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-09-30 | sec_edgar |
| capex | {"amount": 18400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-06-30 | sec_edgar |
| capex | {"amount": 12400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-03-31 | sec_edgar |
| capex | {"amount": 38400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-12-31 | sec_edgar |
| capex | {"amount": 28300000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-09-30 | sec_edgar |
| capex | {"amount": 25400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-06-30 | sec_edgar |
| capex | {"amount": 20500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-03-31 | sec_edgar |
| capex | {"amount": 18800000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-12-31 | sec_edgar |
| capex | {"amount": 12700000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-09-30 | sec_edgar |
| capex | {"amount": 7700000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-06-30 | sec_edgar |
| capex | {"amount": 3500000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-03-31 | sec_edgar |
| capex | {"amount": 20400000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-12-31 | sec_edgar |
| capex | {"amount": 16239000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-09-30 | sec_edgar |
| capex | {"amount": 9145000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-06-30 | sec_edgar |
| capex | {"amount": 4673000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-03-31 | sec_edgar |
| capex | {"amount": 26526000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-12-31 | sec_edgar |
| capex | {"amount": 22499000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-09-30 | sec_edgar |
| capex | {"amount": 14769000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-06-30 | sec_edgar |
| capex | {"amount": 6820000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-03-31 | sec_edgar |
| capex | {"amount": 24780000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-12-31 | sec_edgar |
| capex | {"amount": 14597000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-09-30 | sec_edgar |
| capex | {"amount": 7594000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-06-30 | sec_edgar |
| capex | {"amount": 4129000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-03-31 | sec_edgar |
| capex | {"amount": 19583000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-12-31 | sec_edgar |
| capex | {"amount": 13476000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-09-30 | sec_edgar |
| capex | {"amount": 7411000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-06-30 | sec_edgar |
| capex | {"amount": 3511000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-03-31 | sec_edgar |
| capex | {"amount": 14775000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-12-31 | sec_edgar |
| capex | {"amount": 11380000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-09-30 | sec_edgar |
| capex | {"amount": 7192000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-06-30 | sec_edgar |
| capex | {"amount": 4017000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-03-31 | sec_edgar |
| capex | {"amount": 15623000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-12-31 | sec_edgar |
| capex | {"amount": 11110000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-09-30 | sec_edgar |
| capex | {"amount": 7482000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-06-30 | sec_edgar |
| capex | {"amount": 4219000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-03-31 | sec_edgar |
| capex | {"amount": 13902000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-12-31 | sec_edgar |
| capex | {"amount": 7663000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-09-30 | sec_edgar |
| capex | {"amount": 4023000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-06-30 | sec_edgar |
| capex | {"amount": 1634000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-03-31 | sec_edgar |
| capex | {"amount": 10529000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-12-31 | sec_edgar |
| capex | {"amount": 6651000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-09-30 | sec_edgar |
| capex | {"amount": 4195000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-06-30 | sec_edgar |
| capex | {"amount": 11483000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 85609000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 53473000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 53901000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 54001000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 58398000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 55947000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 53305000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 44997000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 58033000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 42283000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 27945000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 26914000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 51300000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 56807000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 67638000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 76824000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 92962000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 79784000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 62603000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 63400000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 80984000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 65309000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-09-30 | sec_edgar |