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Derivative Instruments and Hedging Activities - Interest Rate Swap Agreements (Parenthetical) (Detail)
Dec. 31, 2013
USD ($)
Dec. 31, 2013
EUR (€)
Dec. 31, 2013
Interest rate swap agreements [Member]
EUR (€)
Dec. 31, 2013
Floating Rate Payable [Member]
USD ($)
Dec. 31, 2013
Inception date of swap 2014 [Member]
USD ($)
Derivative [Line Items]          
Minimum variable interest rate on debt 0.30% 0.30%      
Maximum variable interest rate on debt 4.50% 4.50%      
Principal Amount     € 247,600,000 $ 200,000,000 $ 300,000,000
LIBOR rate receivable fixed       2.14%  
Floating LIBOR rate receivable/payable cap       6.00%  
Reducing principal amount of Euro-denominated interest rate swaps $ 96,300,000 € 70,100,000