Income Taxes - Table 2 (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation
Tax expense at statutory rate	35.00%	35.00%	35.00%
Increase (decrease) in tax rate resulting from:
State income taxes, net of federal tax benefit	4.00%	3.70%	3.00%
Decrease in valuation allowance	(2.30%)	(2.80%)	(11.60%)
Settlement of tax claims	(28.70%)	0.30%	(7.20%)
Noncontrolling interests	(5.10%)	(5.10%)	(6.50%)
Adjustments to net operating loss carryforwards	0.00%	0.00%	2.90%
Interest, net	(0.10%)	(0.20%)	(1.60%)
Other, net	0.40%	1.00%	1.30%
Income tax expense	3.20%	31.90%	15.30%