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Business Acquisitions, Goodwill and Intangible Assets (Details 3) (USD $) | 3 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2012
Identifiable intangible assets with finite useful lives |  |  |
Gross Amount | $ 251,500,000 |  | $ 242,500,000
Accumulated Amortization | (150,800,000) |  | (145,500,000)
Intangible Assets, Net | 100,659,000 |  | 96,973,000
Amortization expense | 5,300,000 | 5,900,000 |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |  |
2013 (nine months remaining) | 15,900,000 |  |
2014 | 19,000,000 |  |
2015 | 16,000,000 |  |
2016 | 13,300,000 |  |
2017 | 12,100,000 |  |
Thereafter | 24,400,000 |  |
Intangible Assets, Net | 100,659,000 |  | 96,973,000
Backlog |  |  |
Identifiable intangible assets with finite useful lives |  |  |
Gross Amount | 95,200,000 |  | 91,100,000
Accumulated Amortization | (85,400,000) |  | (83,800,000)
Intangible Assets, Net | 9,800,000 |  | 7,300,000
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |  |
Intangible Assets, Net | 9,800,000 |  | 7,300,000
Backlog | Minimum |  |  |
Identifiable intangible assets with finite useful lives |  |  |
Amortization Period | 1 year |  |
Backlog | Maximum |  |  |
Identifiable intangible assets with finite useful lives |  |  |
Amortization Period | 5 years |  |
Customer relationships |  |  |
Identifiable intangible assets with finite useful lives |  |  |
Gross Amount | 148,500,000 |  | 143,600,000
Accumulated Amortization | (57,800,000) |  | (54,100,000)
Intangible Assets, Net | 90,700,000 |  | 89,500,000
Amortization Period | 10 years |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |  |
Intangible Assets, Net | 90,700,000 |  | 89,500,000
Trademark / tradename |  |  |
Identifiable intangible assets with finite useful lives |  |  |
Gross Amount | 7,800,000 |  | 7,800,000
Accumulated Amortization | (7,600,000) |  | (7,600,000)
Intangible Assets, Net | 200,000 |  | 200,000
Amortization Period | 2 years |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |  |
Intangible Assets, Net | $ 200,000 |  | $ 200,000

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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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