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Segment Information about Reported Product Revenues and Operating Income (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | $ 171,182 | $ 141,058 | $ 479,792 | $ 406,737
Depreciation and amortization | 7,737 | 7,445 | 23,467 | 22,737
Operating income (loss) | 14,554 | 10,038 | 32,764 | 27,089
CCS |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 37,697 | 33,966 | 103,460 | 96,117
Depreciation and amortization | 437 | 329 | 1,115 | 787
Operating income (loss) | 11,152 | 9,328 | 28,953 | 25,037
Advanced Technology |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 117 | 82 | 344 | 388
Operating income (loss) | (1,544) | (1,631) | (5,174) | (5,260)
W.E.T. |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Product revenues | 133,485 | 107,092 | 376,332 | 310,620
Depreciation and amortization | 6,870 | 6,692 | 21,143 | 20,697
Operating income (loss) | 11,297 | 8,249 | 28,407 | 22,274
Reconciling Items |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | 313 | 342 | 865 | 865
Operating income (loss) | $ (6,351) | $ (5,908) | $ (19,422) | $ (14,962)

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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=31042434&loc=d3e3602-108585 + Details
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- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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