Income Taxes - Reconciliation of Statutory Federal Tax Rate to Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Statutory federal tax rate	35.00%	35.00%	35.00%
State and local taxes, net of federal tax benefit	2.20%	4.30%	3.60%
Non-deductible interest expenses	(0.40%)	11.80%	0.00%
Non-deductible goodwill impairment charge	(2.20%)	0.00%	(27.50%)
Tax attribution reduction	(0.10%)	(4.30%)	0.00%
Subsidiary basis adjustment	1.30%	19.10%	12.60%
Change in valuation allowance	(5.90%)	(63.80%)	(8.00%)
Change in unrecognized tax benefits	2.40%	0.00%	2.90%
Change in state tax laws	(0.20%)	4.30%	0.00%
Other, net	(0.60%)	6.40%	0.80%
Effective tax rate	31.50%	12.80%	19.40%