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Business Acquisitions, Goodwill and Intangible Assets (Details 4) (USD $) | 12 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
2015 | $ 26,500,000 |
2016 | 17,500,000 |
2017 | 13,200,000 |
2018 | 9,900,000 |
2019 | 9,000,000 |
Thereafter | 14,100,000 |
Intangible Assets, Net | 90,238,000 | 83,149,000
Gross Amount | 280,900,000 | 249,800,000
Accumulated Amortization | (190,700,000) | (166,700,000)
Intangible Assets, Net | 90,238,000 | 83,149,000
Amortization expense | 24,000,000 | 21,200,000
Contractual Rights [Member] |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
Intangible Assets, Net | 12,600,000 | 5,500,000
Gross Amount | 110,000,000 | 94,900,000
Accumulated Amortization | (97,400,000) | (89,400,000)
Intangible Assets, Net | 12,600,000 | 5,500,000
Contractual Rights [Member] | Minimum [Member] |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
Amortization Period | 1 year |
Contractual Rights [Member] | Maximum |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
Amortization Period | 5 years |
Customer Relationships [Member] |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
Intangible Assets, Net | 76,200,000 | 77,600,000
Gross Amount | 161,600,000 | 147,100,000
Accumulated Amortization | (85,400,000) | (69,500,000)
Intangible Assets, Net | 76,200,000 | 77,600,000
Amortization Period | 10 years |
Trademarks and Trade Names [Member] |  |
Estimated amortization expense of intangible assets for the remainder of fiscal 2013 and for the succeeding years |  |
Intangible Assets, Net | 1,400,000 |
Gross Amount | 9,300,000 | 7,800,000
Accumulated Amortization | (7,900,000) | (7,800,000)
Intangible Assets, Net | $ 1,400,000 |
Amortization Period | 2 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 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 of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for 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)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for 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)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for 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)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for 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)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for 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)(3) -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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