Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components of Income Tax Expense (Detail)

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Income Taxes - Components of Income Tax Expense (Detail) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Current:      
Foreign $ 104,000,000 $ 103,300,000 $ 84,900,000
Federal 82,100,000 55,300,000 27,400,000
State 8,600,000 7,400,000 8,200,000
Current Income Tax Expense (Benefit), Total 194,700,000 166,000,000 120,500,000
Deferred:      
Foreign (6,300,000) (11,800,000) (3,200,000)
Federal (2,700,000) (8,700,000) (29,900,000)
State 1,200,000 (700,000) (200,000)
Deferred Income Tax Expense (Benefit), Total (7,758,000) (21,271,000) (33,338,000)
Total $ 186,900,000 $ 144,800,000 $ 87,200,000