Leases (Lessee) - Summary of Supplemental Cash Flow Information (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,408
Operating cash flows from finance leases	83
Financing cash flows from finance leases	10
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 1,575