Debt (Details 2)	Jun. 30, 2012
Present through September 30, 2012 [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.00
Total Leverage Not To Exceed	4.75
December 31, 2012 through September 30, 2013 [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.15
Total Leverage Not To Exceed	4.625
December 31, 2013 through September 30, 2014 [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.15
Total Leverage Not To Exceed	4.375
December 31, 2014 through September 30, 2015 [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.25
Total Leverage Not To Exceed	4.00
December 31, 2015 through September 30, 2016 [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.25
Total Leverage Not To Exceed	3.75
December 31, 2016 through maturity [Member]
Quarterly financial covenants
Interest Coverage Minimum Ratio	2.25
Total Leverage Not To Exceed	3.50