Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Comprehensive Income (Unaudited)

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Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Condensed Consolidated Statements of Comprehensive Income [Abstract]    
Net income (loss) $ 20,498 $ 14,964
Other comprehensive income (loss) before taxes:    
Change in fair value of interest rate swap agreements 2,807 3,281
Total other comprehensive income (loss) before taxes 2,807 3,281
Provision for income tax benefit (expense) related to components of other comprehensive income (loss) (1,066) (1,247)
Other comprehensive income (loss) 1,741 2,034
Comprehensive income (loss) $ 22,239 $ 16,998