Description of Business and Summary of Significant Accounting Policies - Other Current Assets of Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Prepaid Expense And Other Assets [Abstract]
Other receivables	$ 3,615	$ 7,725
Prepaid expenses	16,530	16,892
Inventories	6,653	6,495
Deferred software costs	6,110	8,638
Supplemental deferred compensation plan assets	18,883	15,580
Other	3,655	8,652
Total prepaid expenses and other assets	$ 55,446	$ 63,982