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Employee Benefit Plans - Additional Information (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Employees maximum 401(k) contribution, percentage | 100.00% |  |
Defined contribution plan, contribution | $ 2,800,000 | $ 2,800,000 | $ 2,900,000
Employer 401(k) matching contribution to employee, maximum percentage | 4.00% |  |
Employer 401(k) matching contribution to employee, maximum amount | 4,000 |  |
Defined contribution plan, employer matching percentage on every deferred dollar | 100.00% |  |
Employees Under Age 50 |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Employees maximum 401(k) contribution, amount | 17,000 |  |
Employees aged 50 or older |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Employees maximum 401(k) contribution, amount | 22,500 |  |
EMEA |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Defined contribution plan, contribution | $ 1,300,000 | $ 1,300,000 | $ 1,400,000
EMEA | Employed at December 1, 2000 |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Defined contribution plan, employer contribution percentage of eligible compensation minimum | 8.50% |  |
EMEA | Employees aged over 55 years |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Defined contribution plan, employer contribution percentage of eligible compensation maximum | 15.50% |  |
EMEA | Employed subsequent to December 1, 2000 |  |  |
Pension and Other Postretirement Benefits Disclosure [Line Items] |  |  |
Defined contribution plan, employer contribution percentage of eligible compensation | 6.00% |  |

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- Definition Defined Contribution Plan, Employee Annual Contribution, Maximum + References No definition available. + Details
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- Definition Company's contribution of eligible compensation for those employed after December 31, 2000. + References No definition available. + Details
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- Definition Company's maximum contribution of eligible compensation for employees aged over 55 years and employed at December 31, 2000. + References No definition available. + Details
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- Definition Company's contribution of eligible compensation for employees employed at December 31, 2000. + References No definition available. + Details
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- Definition Employer 401(k) Matching Contribution to Employee, Maximum + References No definition available. + Details
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- Definition Employer Maximum Annual 401 K Plan Contribution, Per Employee + References No definition available. + Details
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- Definition Employer Percentage Match Contribution of Eligible Compensation up to Maximum Annual Contribution. + References No definition available. + Details
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- Definition Maximum 401(k) Plan Contribution Rates as a Percentage of Employees Earnings + References No definition available. + Details
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- Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
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