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Accounting Policies and Recent Accounting Pronouncements - Property and Equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Property, Plant and Equipment [Line Items] |  |  |
Impairment charges for long-lived assets | $ 0 | $ 0 | $ 0
Furniture and fixtures |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 5 years |  |
Office equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 5 years |  |
Computer hardware |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 3 years |  |
Leasehold improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 5 years |  |
Building |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 40 years |  |
Minimum | Computer software |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 3 years |  |
Minimum | Capitalized software development costs |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 3 years |  |
Maximum | Computer hardware |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 7 years |  |
Maximum | Capitalized software development costs |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Useful life | 5 years |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2921-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 + Details
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