Future Maturities of Lease Liabilities (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Operating Leases
2019 (remaining 6 months)	$ 35,307
2020	64,302
2021	57,151
2022	46,746
2023	42,234
Later years	181,673
Total lease payments	427,413
less imputed interest	(95,278)
Total	332,135
Finance Leases
2019 (remaining 6 months)	1,834
2020	3,375
2021	3,257
2022	3,559
2023	3,654
Later years	12,092
Total lease payments	27,771
less imputed interest	(8,901)
Total	$ 18,870