Debt (Schedule of Estimated Net Leverage Ratio and Estimated Margin) (Details)	12 Months Ended
	Dec. 31, 2013
Debt Instrument [Line Items]
Margin increase or decrease percentage	0.25%
Amortization rate of initial principal amount per annum payable quarterly	1.00%
Credit-linked Revolving Facility [Member]
Debt Instrument [Line Items]
Estimated margin	1.50%
Total net leverage ratio	< = 2.25
Estimated total net leverage ratio	1.54
Line of credit facility, unused capacity, commitment fee percentage	1.50%
Credit-linked Revolving Facility [Member] | Increases Margin by Zero Point Twenty Five Percent [Member]
Debt Instrument [Line Items]
Estimated margin	1.75%
Total net leverage ratio	> 2.25
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.25%
European Interbank Offered Rate (EURIBOR) [Member] | Term C-2 Loan Facility [Member]
Debt Instrument [Line Items]
Estimated margin	2.00%
London Interbank Offered Rate (LIBOR) [Member] | Credit-linked Revolving Facility [Member]
Debt Instrument [Line Items]
Estimated margin	2.50%
London Interbank Offered Rate (LIBOR) [Member] | Term C-2 Loan Facility [Member]
Debt Instrument [Line Items]
Estimated margin	2.00%