Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Effects of Prior Period Errors in Condensed Consolidated Balance Sheets (Detail)

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Significant Accounting Policies - Effects of Prior Period Errors in Condensed Consolidated Balance Sheets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Prepaid expenses and other current assets $ 146,373 $ 145,624
Total current assets 1,365,922 984,047
Total assets 2,109,208 1,724,143
Income taxes payable 71,434 61,325
Total current liabilities 742,033 762,362
Total liabilities 1,791,517 1,328,660
Retained earnings 59,908 123,096
Total shareholders' equity 317,691 395,483
Total liabilities and shareholders' equity 2,109,208 1,724,143
As Previously Reported [Member]
    
Prepaid expenses and other current assets 126,465 125,425
Total current assets 1,346,014 963,848
Total assets 2,089,300 1,703,944
Income taxes payable 26,272 15,854
Total current liabilities 696,871 716,891
Total liabilities 1,746,355 1,283,189
Retained earnings 85,162 148,368
Total shareholders' equity 342,945 420,755
Total liabilities and shareholders' equity $ 2,089,300 $ 1,703,944