XML 43 R59.htm IDEA: XBRL DOCUMENT v2.4.0.8
Estimated Fair Value of Outstanding Debt Balances (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value of Debt $ 687,500 $ 692,500
Fair value of Debt 719,377 683,565
Term Loan Facility
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value of Debt 87,500 92,500
Fair value of Debt 87,500 92,500
4.97% Series A Senior Notes, Due October 5th 2020
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value of Debt 300,000 300,000
Fair value of Debt 323,706 304,293
4.27% Series B Senior Notes, Due June 14th 2022
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying value of Debt 300,000 300,000
Fair value of Debt $ 308,171 $ 286,772