Leases - Summary of Minimum Future Lease Payments (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating leases
2019	$ 6,864
2020	13,261
2021	13,048
2022	13,031
2023	12,553
Thereafter	8,605
Total	67,362
Less: imputed interest	(8,359)
Net lease obligation	59,003
Finance leases
2019	12,474
2020	24,880
2021	23,675
2022	11,418
2023	5,389
Thereafter	1,061
Total	78,897
Less: imputed interest	(8,157)
Net lease obligation	$ 70,740