Commitments and Contingencies - Schedule of Undiscounted Minimum Rental Commitments Under Non-cancelable Leases and Operating Leases Liabilities (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Operating Leases, Total	$ 45,280
Present value adjustment using incremental borrowing rate	(9,299)
Operating lease liabilities	$ 35,981