XML 75 R64.htm IDEA: XBRL DOCUMENT v3.7.0.1
Debt (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Nov. 30, 2016
Aug. 31, 2016
Aug. 31, 2015
Jun. 30, 2017
Dec. 31, 2016
Aug. 01, 2016
Mar. 31, 2013
Mar. 31, 2008
Mar. 31, 2003
Debt Instrument [Line Items]                  
Amount outstanding under revolving credit facility       $ 0.0          
Revolving credit facility draw down amount without violating covenant       $ 354.0          
Repayments of Debt $ 238.4 $ 300.6              
Debt Instrument, Repurchase Amount         $ 180.5        
Credit ratings       Our long-term credit ratings are: Moody’s ratings of Stable Outlook with B1 for corporate family debt, B3 for senior unsecured debt, and Ba1 for the Senior Secured Notes; S&P ratings of Positive Outlook with B for corporate family debt and senior unsecured debt and BB- for the Senior Secured Notes; and Fitch rating of Negative Outlook with B+, each of which are below investment grade.          
Revolving Credit Facility [Member]                  
Debt Instrument [Line Items]                  
Line of credit facility       $ 400.0          
Debt Instrument, Interest Rate Terms       Borrowings under the 2015 facility bear interest, at our option, at a rate per annum equal to LIBOR plus 250 basis points or a floating base rate plus 150 basis points, in each case subject to adjustment based upon a leverage-based pricing grid.          
2013 Notes [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Interest Rate Terms       The indenture governing the 2013 Notes contains interest rate adjustment provisions depending on the long-term credit ratings assigned to the 2013 Notes with S&P and Moody's. As described in the indenture, the interest rates on the 2013 Notes increase by .25% for each one-notch downgrade below investment grade on each of our long-term credit ratings assigned to the 2013 Notes by S&P or Moody's. These adjustments are limited to a total increase of 2% above the respective interest rates in effect on the date of issuance of the 2013 Notes.          
Six Point Five Percent Notes Due March Two Thousand Nineteen [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount               $ 350.0  
Debt Instrument, Interest Rate, Stated Percentage               6.50%  
Notes Payable, Other Payables [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Covenant, Minimum Required Offer To Repurchase, Percentage Of Aggregate Principal Amount       101.00%          
Five Point Seven Five Percent Notes, Due March Two Thousand Eighteen [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Interest Rate, Stated Percentage               5.75%  
Four Point Two Percent Notes, Due July Two Thousand Eighteen [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Interest Rate, Stated Percentage                 4.20%
Two Point Three Seven Five Percent Notes, Due March Two Thousand Sixteen [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount             $ 250.0    
Debt Instrument, Interest Rate, Stated Percentage             2.375%    
Repayments of Debt     $ 250.0            
Four Point Six Zero Percent Notes, Due March Two Thousand Twenty [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount             $ 500.0    
Debt Instrument, Interest Rate, Stated Percentage             4.60%    
Five Point Zero Percent Notes, Due March Two Thousand Twenty-Three [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount             $ 500.0    
Debt Instrument, Interest Rate, Stated Percentage             5.00%    
Six Point Nine Five Percent Notes, Due March Two Thousand Forty-Three [Member]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount             $ 250.0    
Debt Instrument, Interest Rate, Stated Percentage             6.95%    
Seven Point Eight Seven Five Percent Notes, Due August Two Thousand Twenty Two [Domain]                  
Debt Instrument [Line Items]                  
Debt Instrument, Face Amount           $ 500.0      
Debt Instrument, Interest Rate, Stated Percentage           7.875%      
AIO [Member]                  
Debt Instrument [Line Items]                  
Standby letters of credit, recorded liability       $ 41.0