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Accumulated Other Comprehensive Loss
 3 Months Ended
Mar. 31, 2013
Equity [Abstract]  
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
The following table details the components of accumulated other comprehensive loss:
 
Three Months Ended March 31, 2013
Gains and Losses on Cash Flow Hedges:
 
Balance as of December 31, 2012
$
(8,446
)
Other comprehensive loss before reclassifications
(59
)
Amounts reclassified from accumulated other comprehensive loss to interest expense
1,911

Net current-period other comprehensive income, before income taxes
1,852

Income tax expense
(687
)
Net current-period other comprehensive income, net of income taxes
1,165

Balance as of March 31, 2013
$
(7,281
)