Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 01, 2014
Commitments and Contingencies Disclosure [Abstract]
Rental expense	$ 21,643	$ 24,338	$ 23,886
Lease term	50 years
Lease expiration date	Jul. 01, 2048
Minimum annual rent payment				10,400
Additional capital payments	$ 43,000