Leases - Maturity Analysis (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (remaining)	$ 15,170
2020	49,841
2021	46,881
2022	28,514
2023	23,973
Thereafter	88,704
Total future lease payments	253,083
Less: imputed interest	(46,320)
Total lease liabilities	$ 206,763
Weighted Average Remaining Lease Term (years)	6 years 8 months 12 days
Weighted Average Discount Rate	5.60%