Current report filing

Consolidated Statements of Cash Flows (Parenthetical)

v2.4.0.6
Consolidated Statements of Cash Flows (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Consolidated Statements of Cash Flows [Abstract]      
Tax benefit/expense associated with change in fair value of interest rate swap agreements $ 1,527 $ 2,247 $ 7,045