Leases - Schedule of Financial Statement Classification of Lease Balances With Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee Lease Description [Line Items]
Total lease cost	$ 6,870	$ 5,116
Selling and Administrative Expenses [Member]
Lessee Lease Description [Line Items]
Operating lease cost	6,514	4,918
Amortization of leased assets	324	171
Interest Expense, Net [Member]
Lessee Lease Description [Line Items]
Interest on lease liabilities	$ 32	$ 27