Operating Leases and Service Commitment - Lease Liability (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Operating Leases
2019	$ 8,825
2020	6,452
2021	4,594
2022	3,801
2023	1,767
Thereafter	1,600
Total lease payments	27,039
Finance Leases
2019	718
2020	308
2021	0
2022	45
2023	0
Thereafter	0
Total lease payments	1,071
Total
2019	9,543
2020	6,760
2021	4,639
2022	3,801
2023	1,767
Thereafter	1,600
Total lease payments	$ 28,110

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