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Debt - 2015 Term Loan Facility (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 17, 2015
Mar. 31, 2016
Dec. 31, 2015
2015 Term Loan Facility      
Debt      
Debt term 6 years 6 years  
Aggregate principal amount of debt issued $ 350.0 $ 350.0  
Maximum incremental loan capacity allowed $ 225.0    
Net carrying value of outstanding borrowings   $ 328.0  
Installment payment amount     $ 4.4
Annual mandatory prepayment of debt as a percentage of excess cash flow   50.00%  
Percentage of equity interests in domestic subsidiaries pledged as collateral for borrowing (as a percent)   100.00%  
Percentage of voting equity interests in direct foreign subsidiaries pledged as collateral for borrowing (as a percent)   65.00%  
Percentage of non-voting equity interests in direct foreign subsidiaries pledged as collateral for borrowing (as a percent)   100.00%  
2015 Term Loan Facility | London Interbank Offered Rate (LIBOR)      
Debt      
Margin rate   3.75%  
Floor for variable rate   1.00%  
Interest rate (as a percent)   4.75%  
Effective interest rate   5.65%  
2015 Term Loan Facility | Prime Rate      
Debt      
Margin rate   2.75%  
Floor for variable rate   2.00%  
2014 Term Loan Facility      
Debt      
Unamortized debt issuance costs   $ 6.8