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Property And Equipment | 12 Months Ended
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Sep. 30, 2017
Property, Plant and Equipment [Abstract] |
Property And Equipment | Property and Equipment Property and equipment consisted of the following:
| September 30,
| 2017 |  | 2016
| (in thousands)
Computer hardware and software | $ | 286,380 |  |  | $ | 267,928 |
Furniture and fixtures | 21,145 |  |  | 20,742 |
Leasehold improvements | 47,658 |  |  | 43,769 |
Gross property and equipment | 355,183 |  |  | 332,439 |
Accumulated depreciation and amortization | (291,583 | ) |  | (265,326 | )
Net property and equipment | $ | 63,600 |  |  | $ | 67,113 |
Depreciation expense was $28.0 million, $28.8 million and $28.9 million in 2017, 2016 and 2015, respectively.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 + Details
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