Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Narrative) (Details)

v2.4.0.8
Long-Term Debt (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 3 Months Ended
Apr. 24, 2012
Mar. 31, 2014
Term loan
   
Debt Instrument [Line Items]    
Revolving credit facility $ 250  
Debt Instrument, Interest Rate, Effective Percentage   1.6545%
Revolving credit facility
   
Debt Instrument [Line Items]    
Revolving credit facility 350  
Letters of Credit Outstanding, Amount   7.9
Line of Credit Facility, Remaining Borrowing Capacity   342.1
Syndicated Credit Agreement [Member]
   
Debt Instrument [Line Items]    
Revolving credit facility 600  
Term of debt 5 years  
Maximum borrowing capacity 850  
Deferred Finance Costs, Noncurrent, Net $ 5.5  
Maximum leverage ratio, required   3.00
Minimum interest coverage ratio, required   3.00
Actual leverage ratio   0.74
Actual interest coverage ratio   58.74
Voting Equity Securities Of H S Ni U S Subsidiaries [Member]
   
Debt Instrument [Line Items]    
Secured rate 100.00%  
Voting Equity Securities Of First Tier Subsidiaries [Member]
   
Debt Instrument [Line Items]    
Secured rate 65.00%  
Minimum [Member] | Revolving credit facility
   
Debt Instrument [Line Items]    
Line of Credit Facility, Commitment Fee Percentage   0.25%
Minimum [Member] | Syndicated Credit Agreement [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 1.50%  
Debt Instrument, Interest Rate, Effective Percentage 0.50%  
Maximum [Member] | Revolving credit facility
   
Debt Instrument [Line Items]    
Line of Credit Facility, Commitment Fee Percentage   0.40%
Maximum [Member] | Syndicated Credit Agreement [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage 2.25%  
Debt Instrument, Interest Rate, Effective Percentage 1.25%