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Goodwill And Other Intangible Assets (Other Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011 | Dec. 31, 2011
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | $ 367,125
Accumulated Amortization | (194,607) |  | (194,607) |  | (164,401)
Amortization Expense | (10,504) | (8,295) | (29,447) | (21,432) |
Additions |  |  | 19,472 |  |
Foreign Currency Adjustments |  |  | 1,836 |  |
Intangible Assets, Net, subject to amortization | 194,585 |  | 194,585 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 12 years 8 months 12 days |  |
Indefinite-lived Intangible Assets, Beginning Balance |  |  | 4,500 |  |
Indefinite-lived Intangible Assets, Ending Balance | 4,500 |  | 4,500 |  |
Intangible assets, gross |  |  |  |  | 371,625
Intangible assets, net | 199,085 |  | 199,085 |  | 207,224
Customer Relationships [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 171,893
Accumulated Amortization |  |  |  |  | (38,158)
Amortization Expense |  |  | (8,731) |  |
Additions |  |  | 5,311 |  |
Foreign Currency Adjustments |  |  | 1,102 |  |
Intangible Assets, Net, subject to amortization | 131,417 |  | 131,417 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 11 years 4 months 24 days |  |
Backlog [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 121,779
Accumulated Amortization |  |  |  |  | (101,153)
Amortization Expense |  |  | (14,560) |  |
Additions |  |  | 4,906 |  |
Foreign Currency Adjustments |  |  | 415 |  |
Intangible Assets, Net, subject to amortization | 11,387 |  | 11,387 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 1 year 6 months |  |
Trade Names [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 29,661
Accumulated Amortization |  |  |  |  | (1,948)
Amortization Expense |  |  | (793) |  |
Additions |  |  | 2,768 |  |
Foreign Currency Adjustments |  |  | 195 |  |
Intangible Assets, Net, subject to amortization | 29,883 |  | 29,883 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 27 years 6 months |  |
Non-compete Agreements [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 27,414
Accumulated Amortization |  |  |  |  | (17,604)
Amortization Expense |  |  | (3,914) |  |
Additions |  |  | 1,926 |  |
Foreign Currency Adjustments |  |  | 140 |  |
Intangible Assets, Net, subject to amortization | 7,962 |  | 7,962 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 3 years 2 months 12 days |  |
Patented Rights And Developed Technology [Member] |  |  |  |  |
Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  |  | 16,378
Accumulated Amortization |  |  |  |  | (5,538)
Amortization Expense |  |  | (1,449) |  |
Additions |  |  | 4,561 |  |
Foreign Currency Adjustments |  |  | (16) |  |
Intangible Assets, Net, subject to amortization | $ 13,936 |  | $ 13,936 |  |
Remaining Weighted Average Amortization Period in Years |  |  | 7 years |  |

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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 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 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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