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Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 12 years 10 months 24 days |  |
Intangible assets |  | $ 356,372 |
Intangible assets, gross |  | 360,872 |
Indefinite-lived Intangible Assets, Beginning Balance | 4,500 |  |
Addition to indefinite lived intangible assets |  |  |
Accumulated Amortization | (198,082) | (159,996) |
Indefinite-lived Intangible Assets, Ending Balance | 4,500 | 4,500 |
Amortization Expense | (37,691) | (29,039) | (37,655)
Additions | 19,472 |  |
Foreign Currency Adjustments | 1,179 |  |
Intangible assets, net | 183,836 | 200,876 |
Intangible Assets, Net, subject to amortization | 179,336 |  |
Customer Relationships [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 11 years 2 months 12 days |  |
Intangible assets |  | 164,259 |
Accumulated Amortization |  | (36,300) |
Amortization Expense | (11,180) |  |
Additions | 5,311 |  |
Foreign Currency Adjustments | 598 |  |
Intangible Assets, Net, subject to amortization | 122,688 |  |
Backlog [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 2 years 1 month 6 days |  |
Intangible assets |  | 120,682 |
Accumulated Amortization |  | (100,056) |
Amortization Expense | (18,944) |  |
Additions | 4,906 |  |
Foreign Currency Adjustments | 401 |  |
Intangible Assets, Net, subject to amortization | 6,989 |  |
Trade Names [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 27 years 2 months 12 days |  |
Intangible assets |  | 29,661 |
Accumulated Amortization |  | (1,948) |
Amortization Expense | (1,064) |  |
Additions | 2,768 |  |
Foreign Currency Adjustments | 128 |  |
Intangible Assets, Net, subject to amortization | 29,545 |  |
Non-compete Agreements [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 3 years 2 months 12 days |  |
Intangible assets |  | 25,392 |
Accumulated Amortization |  | (16,154) |
Amortization Expense | (4,523) |  |
Additions | 1,926 |  |
Foreign Currency Adjustments | 59 |  |
Intangible Assets, Net, subject to amortization | 6,700 |  |
Patented Rights and Developed Technology [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Remaining Weighted Average Amortization Period in Years | 6 years 9 months 18 days |  |
Intangible assets |  | 16,378 |
Accumulated Amortization |  | (5,538) |
Amortization Expense | (1,980) |  |
Additions | 4,561 |  |
Foreign Currency Adjustments | (7) |  |
Intangible Assets, Net, subject to amortization | $ 13,414 |  |

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- Definition Intangible assets gross, excluding goodwill. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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. + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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. + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 42, 45 -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. + Details
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