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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 69,447	$ 50,546	$ 35,206
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on hedging derivatives, net of taxes of $104, $3, and $273 for the years ended December 31, 2012, 2011 and 2010, respectively	137	(7)	(278)
Reclassification of net loss on interest rate corridor, net of taxes of $70 for the year ended December 31, 2011		92
Unrealized losses on available for sale securities, net of taxes of $3 for the year ended December 31, 2010			(4)
Realized gains on available for sale securities, net of taxes of $12 for the year ended December 31, 2010			(19)
Comprehensive income	$ 69,584	$ 50,631	$ 34,905

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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