Leases - Supplemental Lease Cash Flow Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating cash flows for operating leases	$ 18,669
Operating cash flows for finance leases	7
Finance cash flows for finance leases	611
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	126,007
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 1,702