Fair Value of Financial Instruments Credit Facilities (Details) In Millions, unless otherwise specified	1 Months Ended		9 Months Ended
	Mar. 31, 2013 USD ($)	Mar. 31, 2013 New Credit Agreement [Member]	Sep. 30, 2013 United States term loan [Member] Prepayment [Member] USD ($)	Sep. 30, 2013 Australian term Loan [Member] Prepayment [Member] USD ($)	Sep. 30, 2013 Australian term Loan [Member] Prepayment [Member] AUD
Write off of unamortized deferred financing costs	$ 0.5
Reduction in applicable margins		0.25%
Prepayments of debt			$ (69.0)	$ (17.0)	(17.0)