Costs Associated with Exit or Disposal Activities - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Employees
Restructuring and Related Activities [Abstract]
Estimated employee rationalization associated with exit or disposal activities | Employees	800
Cash payment related to restructuring plan | $	$ 15.3
Lease termination date	Feb. 28, 2017