Leases - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019
Operating Leased Assets [Line Items]
Operating lease, ROU asset	$ 84,300
Operating lease liabilities	98,555
Short-term operating lease liabilities	16,900
Long-term operating lease liabilities	81,700
Total lease costs	$ 20,500
Rent expense for noncancelable operating leases		$ 22,400	$ 18,400
Minimum
Operating Leased Assets [Line Items]
Remaining lease term (in years)	1 year
Lease renewable period (in years)	1 year
Maximum
Operating Leased Assets [Line Items]
Remaining lease term (in years)	30 years
Lease renewable period (in years)	5 years
Accounting Standards Update 2016-02
Operating Leased Assets [Line Items]
Operating lease, ROU asset				$ 55,900
Operating lease liabilities				$ 65,500