Leases - Maturities of Company's Operating Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (remainder of year)	$ 23,614
2020	47,412
2021	39,420
2022	26,607
2023	18,391
Thereafter	41,095
Total future minimum lease payments	196,539
Less: imputed interest	(26,816)
Total operating lease liabilities	$ 169,723