Leases - Schedule of Maturity Analysis of Operating Leases (Detail) $ in Thousands	Mar. 31, 2019 USD ($)
(In thousands)
2019	$ 8,237
2020	10,667
2021	10,677
2022	9,129
2023	8,503
Thereafter	60,904
Total lease payments	108,117
Less: interest	(28,368)
Operating lease liability	$ 79,749