Description of Business and Summary of Significant Accounting Policies - Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities [Abstract]
Pension and postretirement benefits liability	$ 40,439	$ 41,783
Straight-line lease liability	84,716	79,352
Deferred compensation liability	19,289	19,712
Other	1,185	1,172
Total other liabilities	$ 145,629	$ 142,019