Leases - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lessee Lease Description [Line Items]
Remaining term descripton of leases	The Company’s existing leases have remaining terms of less than one year up to 32 years.
Weighted average remaining lease term	11 years 1 month 6 days
Weighted average discount rate	6.20%
Lease cost	$ 2,925
Corporate Expenses
Lessee Lease Description [Line Items]
Lease cost	200
Direct Operating Expenses
Lessee Lease Description [Line Items]
Lease cost	1,300
Selling, General and Administrative Expenses
Lessee Lease Description [Line Items]
Lease cost	$ 1,400
Maximum
Lessee Lease Description [Line Items]
Remaining term of leases	32 years