Leases and Other Finance Obligations - Summary of Future Maturities of Lease Obligations (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Capital Leases
2019	$ 10,784
2020	5,392
2021	1,242
Total minimum lease payments	17,418
Less: amount representing interest	(973)
Present value of lease liabilities	16,445
Less: current portion	(10,039)
Long-term lease liabilities, net of current portion	6,406
Operating Leases
2019	77,297
2020	63,633
2021	51,804
2022	37,054
2023	23,327
Thereafter	57,000
Total minimum lease payments	$ 310,115