Quarterly report pursuant to Section 13 or 15(d)

Unaudited Condensed Consolidated Statements of Comprehensive Income

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Unaudited Condensed Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Consolidated Statements of Comprehensive Income [Abstract]        
Net income $ 6,862 $ 6,295 $ 12,120 $ 12,963
Change in fair value of interest rate swap agreements 146 (25) 304 (220)
Comprehensive income $ 7,008 $ 6,270 $ 12,424 $ 12,743