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Schedule of Operating Lease, Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Feb. 28, 2016
2019	$ 10,725
2020	19,177
2021	16,510
2022	12,226
2023	5,849
Thereafter	12,583
Total lease payments	77,070
Less imputed interest	(12,569)
Total lease liabilities	64,501	$ 54,300	$ 54,300
2019	19,570
2020	18,293
2021	13,578
2022	9,693
2023	5,449
Thereafter	9,472
Total lease payments	$ 76,055

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