Leases - Future Minimum Lease Obligations (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2019	$ 9,355
2020	31,683
2021	26,163
2022	22,152
2023	20,336
Thereafter	98,108
Total future lease payments	207,797
Less: imputed interest	49,496
Total	158,301
Finance Lease Liabilities, Payments, Due [Abstract]
Remainder of 2019	126
2020	610
2021	228
2022	188
2023	83
Thereafter	38
Total future lease payments	1,273
Less: imputed interest	67
Total	$ 1,206