Note Leases (Supplemental cash flow information and other related information ) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Operating cash flows from operating leases	$ 7,391
Operating cash flows from finance leases	327
Financing cash flows from finance leases	439	$ 0
ROU assets obtained in exchange for new lease obligations - Operating leases	356
ROU assets obtained in exchange for new lease obligations - Finance leases	$ 3,308
Weighted average remaining term - Operating leases	8 years 5 months
Weighted average remaining lease term - Finance leases	8 years 11 months
Weighted average discount rate - Operating leases	3.80%
Weighted average discount rate - Finance leases	5.70%