Annual report pursuant to Section 13 and 15(d)

Summary of Interest Rate Swap Agreements Designated as Hedge Agreements (Detail)

v2.4.0.6
Summary of Interest Rate Swap Agreements Designated as Hedge Agreements (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Interest Rate Swaps [Line Items]  
Nominal Amount $ 450,000
Current Liability 5,503 [1]
Long-Term Liability 8,689 [2],[3]
Estimated Total Fair Value at December 31, 2012 14,192
Interest Rate Swap One Agreements
 
Interest Rate Swaps [Line Items]  
Nominal Amount 175,000
Effective Date Dec. 01, 2010
Pay Rate 1.3975%
Receive Rate 1-Month LIBOR
Expiration Date Sep. 01, 2015
Current Liability 1,959 [1]
Long-Term Liability 2,991 [2],[3]
Estimated Total Fair Value at December 31, 2012 4,950
Interest Rate Swap Two Agreements
 
Interest Rate Swaps [Line Items]  
Nominal Amount 175,000
Effective Date Dec. 01, 2010
Pay Rate 1.40%
Receive Rate 1-Month LIBOR
Expiration Date Sep. 01, 2015
Current Liability 1,978 [1]
Long-Term Liability 3,004 [2],[3]
Estimated Total Fair Value at December 31, 2012 4,982
Interest Rate Swap Three Agreements
 
Interest Rate Swaps [Line Items]  
Nominal Amount 100,000
Effective Date Nov. 01, 2011
Pay Rate 1.715%
Receive Rate 1-Month LIBOR
Expiration Date Apr. 01, 2016
Current Liability 1,566 [1]
Long-Term Liability 2,694 [2],[3]
Estimated Total Fair Value at December 31, 2012 $ 4,260
[1] Included in accrued other current liabilities on the consolidated balance sheet as of December 31, 2012.
[2] Balances are presented net of accumulated impairment losses of $214,031 for the U.S. operating segment and $27,622 for the international operating segment.
[3] Included in other long-term liabilities on the consolidated balance sheet as of December 31, 2012.