Federal, State and Local Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Line Items]
Unrecognized gross tax benefits	$ 20,250,000	$ 24,220,000	$ 8,922,000	$ 13,068,000
Total amount of net unrecognized tax benefits that would affect the effective tax rate, if recognized	13,200,000
Income tax benefit attributed to interest and penalties	900,000.0	1,000,000	(2,500,000)
Accrued interest and penalties on tax liabilities	2,200,000	2,500,000
Net deferred tax liabilities	173,011,000	158,340,000
Special Federal Tax Provision
Income Taxes [Line Items]
Tax bad debt base-year reserves	61,500,000
Net deferred tax liabilities	$ 21,500,000