v2.4.0.8

Basis of Presentation - Effects of Prior Period Errors in Consolidated Balance Sheets (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Prepaid expenses and other current assets | $ 145,624 | $ 134,605 |  |
Deferred income taxes | 49,339 | 54,949 |  |
Total current assets | 984,047 | 785,685 |  |
Total assets | 1,724,143 | 1,463,075 |  |
Income taxes payable | 61,325 | 62,283 |  |
Total current liabilities | 762,362 | 579,557 |  |
Deferred income taxes | 62,982 | 70,390 |  |
Total liabilities | 1,328,660 | 914,931 |  |
Retained earnings | 123,096 | 293,887 |  |
Total shareholders' equity | 395,483 | 548,144 | 473,996 | 351,218
Total liabilities and shareholders' equity | 1,724,143 | 1,463,075 |  |
As Previously Reported [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Prepaid expenses and other current assets | 125,425 | 117,073 |  |
Deferred income taxes | 49,339 | 55,615 |  |
Total current assets | 963,848 | 768,819 |  |
Total assets | 1,703,944 | 1,446,209 |  |
Income taxes payable | 15,854 | 31,415 |  |
Total current liabilities | 716,891 | 548,689 |  |
Deferred income taxes | 62,982 | 72,348 |  |
Total liabilities | 1,283,189 | 886,021 |  |
Retained earnings | 148,368 | 305,931 |  |
Total shareholders' equity | 420,755 | 560,188 | 487,212 | 359,311
Total liabilities and shareholders' equity | 1,703,944 | 1,446,209 |  |
As Adjusted [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Prepaid expenses and other current assets | 145,624 | 134,605 |  |
Deferred income taxes | 49,339 | 54,949 |  |
Total current assets | 984,047 | 785,685 |  |
Total assets | 1,724,143 | 1,463,075 |  |
Income taxes payable | 61,325 | 62,283 |  |
Total current liabilities | 762,362 | 579,557 |  |
Deferred income taxes | 62,982 | 70,390 |  |
Total liabilities | 1,328,660 | 914,931 |  |
Retained earnings | 123,096 | 293,887 |  |
Total shareholders' equity | 395,483 | 548,144 | 473,996 | 351,218
Total liabilities and shareholders' equity | $ 1,724,143 | $ 1,463,075 |  |

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