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Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Dec. 31, 2013
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | $ 426,732
Indefinite-lived Intangible Assets | 4,500 |  | 4,500 |  | 4,500
Intangible assets, gross |  |  |  |  | 431,232
Accumulated Amortization | (240,584) |  | (240,584) |  | (223,355)
Amortization Expense | (8,615) | (5,079) | (16,860) | (10,380) |
Additions |  |  | 22,368 |  |
Foreign Currency Adjustments |  |  | 654 |  |
Intangible Assets Subject to Amortization, Net | 209,539 |  | 209,539 |  |
Intangible assets, net | 214,039 |  | 214,039 |  | 207,877
Remaining Weighted Average Amortization Period in Years |  |  | 11 years 8 months 12 days |  |
Customer Relationships [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 199,224
Accumulated Amortization |  |  |  |  | (59,417)
Amortization Expense |  |  | (7,413) |  |
Additions |  |  | 13,322 |  |
Foreign Currency Adjustments |  |  | 402 |  |
Intangible Assets Subject to Amortization, Net | 146,118 |  | 146,118 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 10 years 4 months 24 days |  |
Backlog [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 136,831
Accumulated Amortization |  |  |  |  | (127,233)
Amortization Expense |  |  | (6,134) |  |
Additions |  |  | 5,855 |  |
Foreign Currency Adjustments |  |  | 65 |  |
Intangible Assets Subject to Amortization, Net | 9,384 |  | 9,384 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 10 months 24 days |  |
Trade Names [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 40,342
Accumulated Amortization |  |  |  |  | (4,228)
Amortization Expense |  |  | (957) |  |
Additions |  |  | 2,044 |  |
Foreign Currency Adjustments |  |  | 172 |  |
Intangible Assets Subject to Amortization, Net | 37,373 |  | 37,373 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 22 years 6 months |  |
Non-compete Agreements [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 28,895
Accumulated Amortization |  |  |  |  | (22,861)
Amortization Expense |  |  | (1,315) |  |
Additions |  |  | 743 |  |
Foreign Currency Adjustments |  |  | 6 |  |
Intangible Assets Subject to Amortization, Net | 5,468 |  | 5,468 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 3 years 1 month 6 days |  |
Patented Rights and Developed Technology [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets subject to amortization |  |  |  |  | 21,440
Accumulated Amortization |  |  |  |  | (9,616)
Amortization Expense |  |  | (1,041) |  |
Additions |  |  | 404 |  |
Foreign Currency Adjustments |  |  | 9 |  |
Intangible Assets Subject to Amortization, Net | $ 11,196 |  | $ 11,196 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 4 years 10 months 24 days |  |

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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=26713463&loc=d3e16323-109275 + 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=26713463&loc=d3e16323-109275 + 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=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having 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=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References No definition available. + 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=26713463&loc=d3e16323-109275 + Details
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