Lease Agreements - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) integer
Schedule of Operating Leases [Line Items]
Number of properties where non-cancelable long-term leases are in effect | integer	39
2017	$ 61,861
2018	58,941
2019	37,647
2020	14,083
2021	12,181
Thereafter	38,137
Total	$ 222,850
Minimum
Schedule of Operating Leases [Line Items]
Operating leases, term of contract (in years)	1 year
Maximum
Schedule of Operating Leases [Line Items]
Operating leases, term of contract (in years)	10 years