Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 48,847	$ 53,098
Current portion of operating lease liabilities	50,402	53,587
Non-current operating lease liabilities	108,741	117,964
Total lease liabilities	$ 159,143	$ 171,551
Operating leases, weighted average remaining lease term	4 years 4 months 24 days	4 years 6 months
Operating leases, weighted average discount rate	5.70%	5.70%