CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Amortization of debt discounts, premiums and deferred financing fees	$ 1,920	$ 1,710	$ 3,952	$ 3,476

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