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Leases (Details) (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2012
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| Leases | |||
| Lease expense | $ 61,800,000 | $ 49,000,000 | $ 37,600,000 |
| Minimum future lease commitments under leases | |||
| 2015 | 56,264,000 | ||
| 2016 | 36,401,000 | ||
| 2017 | 28,004,000 | ||
| 2018 | 15,399,000 | ||
| 2019 | 8,698,000 | ||
| Thereafter | 9,275,000 | ||
| Total minimum lease payments | 154,041,000 | ||
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Office space
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| Minimum future lease commitments under leases | |||
| 2015 | 52,906,000 | ||
| 2016 | 35,007,000 | ||
| 2017 | 27,241,000 | ||
| 2018 | 14,751,000 | ||
| 2019 | 8,439,000 | ||
| Thereafter | 9,275,000 | ||
| Total minimum lease payments | 147,619,000 | ||
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Equipment
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|||
| Minimum future lease commitments under leases | |||
| 2015 | 3,358,000 | ||
| 2016 | 1,394,000 | ||
| 2017 | 763,000 | ||
| 2018 | 648,000 | ||
| 2019 | 259,000 | ||
| Total minimum lease payments | $ 6,422,000 | ||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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