Leases - Lease Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Finance Leases
2019	$ 1,970
2020	2,141
2021	1,255
2022	634
2023	289
Thereafter	70
Total lease payments	6,359
Less imputed interest	360
Total	5,999
Operating Leases
2019	16,796
2020	22,898
2021	17,702
2022	10,823
2023	8,487
Thereafter	56,486
Total lease payments	133,192
Less imputed interest	(33,632)
Total	$ 99,560	$ 103,900