Lease Agreements - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) integer
Schedule of Operating Leases [Line Items]
Number of properties where non-cancelable long-term leases are in effect | integer	39
2016	$ 58,725
2017	54,587
2018	37,273
2019	19,189
2020	15,048
Thereafter	38,540
Total	$ 223,362
Minimum
Schedule of Operating Leases [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	1 year
Maximum
Schedule of Operating Leases [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	10 years