Long Term Debt and Financing Arrangements (Details) (Senior Credit Facility [Member])	9 Months Ended
	Sep. 30, 2011
Senior Credit Facility [Member]
Financial Ratios Under Senior Credit Facility
Leverage Ratio for the 3 months ended December 31, 2011	3.50%
Leverage Ratio Each Quarter Thereafter	3.50%
Interest Coverage Ratio for the 3 months ended December 31, 2011	2.55%
Interest Coverage Ratio Each Quarter Thereafter	2.75%