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Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Intangible assets subject to amortization |  | $ 377,418 |
Intangible assets, gross |  | 381,918 |
Accumulated Amortization | (223,355) | (198,082) |
Amortization Expense | (27,515) | (37,691) | (29,039)
Additions | 55,124 |  |
Foreign Currency Adjustments | (3,568) |  |
Intangible Assets Subject to Amortization, Net | 203,377 |  |
Intangible assets, net | 207,877 | 183,836 |
Remaining Weighted Average Amortization Period in Years | 11 years 9 months 18 days |  |
Indefinite-lived Intangible Assets | 4,500 | 4,500 |
Customer Relationships [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Intangible assets subject to amortization |  | 170,465 |
Accumulated Amortization |  | (47,777) |
Amortization Expense | (12,096) |  |
Additions | 31,854 |  |
Foreign Currency Adjustments | (2,639) |  |
Intangible Assets Subject to Amortization, Net | 139,807 |  |
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 |  | 126,057 |
Accumulated Amortization |  | (119,068) |
Amortization Expense | (9,698) |  |
Additions | 12,405 |  |
Foreign Currency Adjustments | (98) |  |
Intangible Assets Subject to Amortization, Net | 9,598 |  |
Remaining Weighted Average Amortization Period in Years | 1 year 3 months 18 days |  |
Trade Names [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Intangible assets subject to amortization |  | 32,559 |
Accumulated Amortization |  | (3,014) |
Amortization Expense | (1,251) |  |
Additions | 8,321 |  |
Foreign Currency Adjustments | (501) |  |
Intangible Assets Subject to Amortization, Net | 36,114 |  |
Remaining Weighted Average Amortization Period in Years | 23 years 10 months 24 days |  |
Non-compete Agreements [Member] |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Intangible assets subject to amortization |  | 27,406 |
Accumulated Amortization |  | (20,706) |
Amortization Expense | (2,368) |  |
Additions | 1,944 |  |
Foreign Currency Adjustments | (241) |  |
Intangible Assets Subject to Amortization, Net | 6,035 |  |
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 |  | 20,931 |
Accumulated Amortization |  | (7,517) |
Amortization Expense | (2,102) |  |
Additions | 600 |  |
Foreign Currency Adjustments | (89) |  |
Intangible Assets Subject to Amortization, Net | $ 11,823 |  |
Remaining Weighted Average Amortization Period in Years | 5 years 1 month 6 days |  |

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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 Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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 3: 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=26713463&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=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 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 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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