Description of Business and Summary of Significant Accounting Policies - Summary of Prepaid Expense and Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Prepaid Expense and Other Assets [Abstract]
Peterson note receivable	$ 6,785	$ 16,785
Prepaid expenses	15,992	14,691
Inventories	8,051	7,446
Deferred software costs	3,832	4,890
Supplemental deferred compensation plan assets	19,289	19,712
Other	8,430	3,097
Total prepaid expenses and other assets	$ 62,379	$ 66,621