Long-term Debt Prior Credit Agreements (Details)	12 Months Ended					12 Months Ended	7 Months Ended	12 Months Ended					7 Months Ended		12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	May 27, 2014 Revolving Credit Facility [Member] USD ($)	Oct. 02, 2012 Revolving Credit Facility [Member] USD ($)	Dec. 31, 2013 United States Term Loan [Member] USD ($)	Dec. 31, 2014 United States Term Loan [Member] Loans Payable [Member] USD ($)	Dec. 31, 2013 United States Term Loan [Member] Loans Payable [Member] USD ($)	May 27, 2014 United States Term Loan [Member] Loans Payable [Member] USD ($)	Oct. 02, 2012 United States Term Loan [Member] Loans Payable [Member] USD ($)	Oct. 02, 2012 Canadian Term Loan [Member] Loans Payable [Member] USD ($)	Oct. 02, 2012 Canadian Term Loan [Member] Loans Payable [Member] CAD	Dec. 31, 2014 Australian Term Loan [Member] Loans Payable [Member] USD ($)	Dec. 31, 2014 Australian Term Loan [Member] Loans Payable [Member] AUD	Dec. 31, 2013 Australian Term Loan [Member] Loans Payable [Member] USD ($)	Dec. 31, 2013 Australian Term Loan [Member] Loans Payable [Member] AUD	May 27, 2014 Australian Term Loan [Member] Loans Payable [Member] USD ($)	May 27, 2014 Australian Term Loan [Member] Loans Payable [Member] AUD	Oct. 02, 2012 Australian Term Loan [Member] Loans Payable [Member] USD ($)	Oct. 02, 2012 Australian Term Loan [Member] Loans Payable [Member] AUD
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 625,000,000	$ 425,000,000
Term Loan									1,520,000,000	1,600,000,000	25,000,000	24,600,000					200,300,000	216,800,000	210,000,000	202,900,000
Write off of deferred financing fees	4,600,000	500,000	3,200,000
Prepayments Of Debt							113,000,000	79,000,000					47,000,000	53,000,000	23,600,000	24,000,000
Repayments of Debt						$ 63,700,000									$ 7,700,000	8,100,000