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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2011
Subsequent Events [Abstract]
Subsequent Events	10. Subsequent Events Effective August 1, 2011, the Company amended its credit agreement dated July 30, 2010, changing the fixed charge coverage ratio covenant for the four-quarter periods ended September 30, 2011 and December 31, 2011, from a ratio of 0.80:1 to 0.75:1.