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Leases - Position Costs (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
Assets [Abstract] |  |  |
Right of use assets | $ 46,647 |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Right of use assets |  |
Lease Assets | $ 46,647 |  |
Liabilities, Current [Abstract] |  |  |
Operating lease liability, current | $ 13,479 |  |
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Operating lease liability, current |  |
Liabilities, Noncurrent [Abstract] |  |  |
Operating lease liability, noncurrent | $ 33,396 |  |
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Operating lease liability, noncurrent |  |
Lease liability | $ 46,875 |  |
Lease, Cost [Abstract] |  |  |
Operating lease cost | 16,154 |  |
Short-term lease cost | 2,568 |  |
Variable lease cost | 605 |  |
Total lease cost | 19,327 |  |
Other Information [Abstract] |  |  |
Operating cash flows for operating leases | 16,154 |  |
Operating leases | $ 17,852 |  |
Lease Terms And Discount Rates [Abstract] |  |  |
Weighted-average remaining lease term - operating leases | 7 years 1 month 17 days |  |
Weighted-average discount rate - operating leases | 5.97% |  |
Undiscounted Cash Flows |  |  |
2020 | $ 15,586 |  |
2021 | 10,344 |  |
2022 | 7,099 |  |
2023 | 4,816 |  |
2024 | 2,577 |  |
Thereafter | 17,649 |  |
Total undiscounted lease liability | 58,071 |  |
Less: amount of lease payments representing interest | (11,196) |  |
Long-term lease obligations | 46,875 |  |
Minimum rental commitments under non cancellable operating leases |  |  |
2019 |  |  | $ 10,701
2020 |  |  | 7,104
2021 |  |  | 3,774
2022 |  |  | 2,356
2023 |  |  | 1,538
Thereafter |  |  | 7,482
Total minimum lease payments |  |  | $ 32,955
Accounting Standards Update 2016-02 |  |  |
Assets [Abstract] |  |  |
Right of use assets |  | $ 42,800 |
Liabilities, Noncurrent [Abstract] |  |  |
Lease liability |  | 42,800 |
Undiscounted Cash Flows |  |  |
Long-term lease obligations |  | $ 42,800 |
Adjustment | Accounting Standards Update 2016-02 |  |  |
Assets [Abstract] |  |  |
Right of use assets | 42,800 |  |
Liabilities, Noncurrent [Abstract] |  |  |
Lease liability | 42,800 |  |
Undiscounted Cash Flows |  |  |
Long-term lease obligations | $ 42,800 |  |

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