Leases - Schedule of Lease Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Operating Leases
Remainder of 2019	$ 16,362
2020	15,132
2021	6,574
2022	4,630
2023	2,467
Thereafter	4,438
Total lease payments	49,603
Less imputed interest	(4,224)
Total lease liability	$ 45,379	$ 10,400