Leases - Schedule of Operating Lease Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Operating Lease Liabilities, Payments Due [Abstract]
2019, remainder	$ 68,346
2020	97,651
2021	69,011
2022	48,469
2023	32,656
Thereafter	97,870
Total minimum lease payments	414,003
Less: amount of lease payments representing interest	(76,572)
Present value of future minimum lease payments	337,431	$ 314,100
Less: current obligations under leases	(73,676)
Operating lease liabilities	263,755
Real Estate Lease
Operating Lease Liabilities, Payments Due [Abstract]
2019, remainder	37,128
2020	52,173
2021	50,034
2022	45,980
2023	32,656
Thereafter	97,870
Total minimum lease payments	315,841
Less: amount of lease payments representing interest	(69,562)
Present value of future minimum lease payments	246,279
Less: current obligations under leases	(32,031)
Operating lease liabilities	214,248
Express Drive Partner Program
Operating Lease Liabilities, Payments Due [Abstract]
2019, remainder	31,218
2020	45,478
2021	18,977
2022	2,489
Total minimum lease payments	98,162
Less: amount of lease payments representing interest	(7,010)
Present value of future minimum lease payments	91,152
Less: current obligations under leases	(41,645)
Operating lease liabilities	$ 49,507