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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Summary Of Significant Accounting Policies [Line Items] |  |  |
Allowance for doubtful accounts | $ 7,800,000 | $ 6,500,000 |
Weighted average amortization period of intangible assets, in years | 14 years |  |
Indefinite lived tradenames | 379,400,000 |  |
Indefinite in-process lived research and development | 53,157,000 |  |
Share based compensation expense | 8,623,000 | 4,532,000 | 8,521,000
Total income tax benefit recognized for share-based compensation arrangements | 2,700,000 | 2,500,000 | 2,200,000
Stock issued during period, non-vested shares | 178,690 | 175,291 | 169,751
Stock Option |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Unamortized share based compensation cost related to non-vested stock option, net of expected forfeitures | 3,700,000 |  |
Weighted average period of unamortized share based compensation cost related to non-vested stock option, net of expected forfeitures in years | 1 year 10 months 14 days |  |
Restricted Stock |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Unamortized share based compensation cost related to non-vested stock option, net of expected forfeitures | 9,100,000 |  |
Weighted average period of unamortized share based compensation cost related to non-vested stock option, net of expected forfeitures in years | 1 year 9 months 2 days |  |
Chief Executive Officer |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Reduction in share based compensation expense |  | 3,000,000 |
Intellectual property | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 3 years |  |
Intellectual property | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 20 years |  |
Customer Lists | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 5 years |  |
Customer Lists | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 30 years |  |
Distribution rights | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 3 years |  |
Distribution rights | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of Intangible assets, in years | 22 years |  |
Selling, General And Administrative Expenses |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Share based compensation expense | $ 8,600,000 | $ 4,500,000 | $ 8,500,000
Land Improvements |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 5 years |  |
Building |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 30 years |  |
Machinery and Equipment | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 3 years |  |
Machinery and Equipment | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 10 years |  |
Computer Equipment and Software | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 3 years |  |
Computer Equipment and Software | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Useful life of plant and equipment, in years | 10 years |  |

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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