v2.4.0.8
Reconciliations between our Effective Tax Rate from Continuing Operations and U.S Federal Income Tax Rate (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Line Items]      
Federal income tax rate 35.00% 35.00% 35.00%
State income taxes, net of federal benefit 3.80% 4.00% 4.10%
International rate differential 0.10%    
Changes in deferred tax valuation allowances 0.30%   (0.30%)
Contingent earn-out adjustments (2.60%)    
Other 1.40% 1.10% 0.90%
Impact of noncontrolling interests primarily attributable to non-tax paying entities (4.10%) (4.20%) (4.20%)
Effective tax rate 33.90% 35.90% 35.50%