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Financial Information for Subsidiary Guarantor and Subsidiary Non- Guarantor - Supplemental Condensed Consolidating Statements of Operations (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]        
Foreign currency translation adjustment, tax $ (2,386) $ 8,736 $ (252) $ 2,571
Reclassification of a cash flow hedge into earnings, tax 595 (795) 1,984 (3,180)
Unrealized gain on cash flow hedges, tax (950) (1,262) (3,156) (2,582)
Parent / Issuer [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Foreign currency translation adjustment, tax (2,386) 8,736 (252) 2,571
Reclassification of a cash flow hedge into earnings, tax 595 (795) 1,984 (3,180)
Unrealized gain on cash flow hedges, tax (950) (1,262) (3,156) (2,582)
Guarantor Subsidiaries [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Foreign currency translation adjustment, tax (2,386) 8,736 (252) 2,571
Reclassification of a cash flow hedge into earnings, tax 595 (795) 1,984 (3,180)
Unrealized gain on cash flow hedges, tax (950) (1,262) (3,156) (2,582)
Non-Guarantor Subsidiaries [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Foreign currency translation adjustment, tax (2,386) 8,736 (252) 2,571
Reclassification of a cash flow hedge into earnings, tax 595 (795) 1,984 (3,180)
Unrealized gain on cash flow hedges, tax (950) (1,262) (3,156) (2,582)
Eliminations and Consolidating Entries [Member]
       
Condensed Financial Statements, Captions [Line Items]        
Foreign currency translation adjustment, tax (2,386) 8,736 (252) 2,571
Reclassification of a cash flow hedge into earnings, tax 595 (795) 1,984 (3,180)
Unrealized gain on cash flow hedges, tax $ (950) $ (1,262) $ (3,156) $ (2,582)