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Indebtedness (Tables)
 12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Components of Indebtedness
Indebtedness consisted of the following at December 31, 2015 and 2014 (in millions):
 
December 31, 2015
 
December 31, 2014
4½% Senior term loan due 2016
$
217.2

 
$
242.0

Credit facility, expires 2020
338.9

 
404.4

1.056% Senior term loan due 2020
217.2

 
—

57/8% Senior notes due 2021
297.4

 
300.0

Other long-term debt
164.3

 
145.5

 
1,235.0

 
1,091.9

Less: 4½% Senior term loan due 2016
(217.2
)
 
—

         Current portion of other long-term debt
(89.0
)
 
(94.3
)
Total indebtedness, less current portion
$
928.8

 
$
997.6
Maturities of Long-term Debt
At December 31, 2015, the aggregate scheduled maturities of long-term debt, excluding the current portion of long-term debt, are as follows (in millions):
2017
$
33.2

2018
20.0

2019
7.6

2020
570.6

Thereafter
297.4

 
$
928.8
Interest Expense Recognized on Convertible Senior Subordinated Notes
The following table sets forth the interest expense recognized for the year ended December 31, 2014 relating to the notes’ contractual interest coupon and the interest expense recognized for the year ended December 31, 2013 relating to both the notes’ contractual interest coupon as well as the amortization of the discount on the liability component for the Company’s former 11/4% convertible senior subordinated notes (in millions):
 
Years Ended December 31,
 
2014
 
2013
1¼% Convertible senior subordinated notes:
 

 
 

Interest expense
$
0.9

 
$
11.7