XML 107 R85.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes - Effective Tax Rate as Applied to Pre-Tax Income or Loss from Continuing Operations (Detail)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Line Items]      
U.S. federal statutory rate 35.00% 35.00% 35.00%
State taxes (net of federal tax benefit and change in valuation allowance) (2.00%) 18.00% 1.00%
Permanent items (1.00%) 0.00% 0.00%
Nondeductible compensation (8.00%) 0.00% (1.00%)
Nondeductible transaction costs (23.00%) 0.00% 0.00%
Federal tax credits 2.00% (8.00%) 1.00%
Federal valuation allowance 3.00% (2.00%) (4.00%)
Effect of tax law change 0.00% 0.00% (1.00%)
Unrecognized tax benefits 1.00% (1.00%) 0.00%
Total 7.00% 42.00% 31.00%