Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Sep. 23, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating leases expiration date		Oct. 31, 2028
Total operating lease expense		$ 26.6	$ 26.7	$ 30.9
Loss Contingency, name of plaintiff	Baldwin Hackett & Meeks, Inc.
Loss contingency, damages sought, value	$ 43.8
Loss contingency, damages awarded, value		43.8
Attorney fees and costs		$ 2.7