Property and Equipment and Capitalized Software and Curriculum (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	$ 87,775	$ 97,760
Less accumulated depreciation and amortization	(58,907)	(71,463)
Property and equipment and capitalized software, Net	28,868	26,297
Maintenance and repair expenses	12,100	11,700	$ 11,600
Selling, administrative and other operating expenses
Property and equipment and capitalized software
Depreciation expense	5,100	6,700	6,400
Student computers
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	35,375	32,867
Student computers \| Instructional costs and services
Property and equipment and capitalized software
Depreciation expense	12,400	11,200	12,600
Amortization expense	500	600	500
Computer software
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	15,313	26,314
Computer hardware
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	12,889	15,927
Leasehold improvements
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	11,779	10,094
Office equipment
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	1,476	1,488
Furniture and fixtures
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	4,127	4,533
Web site development costs
Property and equipment and capitalized software
Property and equipment and capitalized software, gross		263
State testing computers
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	6,816	6,274
Capitalized software
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	201,348	193,252
Less accumulated depreciation and amortization	(145,860)	(130,557)
Property and equipment and capitalized software, Net	55,488	62,695
Assets written-off			500
Capitalized software \| Selling, administrative and other operating expenses
Property and equipment and capitalized software
Amortization expense	9,100	7,900	5,500
Capitalized software \| Instructional costs and services
Property and equipment and capitalized software
Amortization expense	25,800	25,100	23,400
Capitalized curriculum
Property and equipment and capitalized software
Property and equipment and capitalized software, gross	185,520	171,736
Less accumulated depreciation and amortization	(131,962)	(112,523)
Property and equipment and capitalized software, Net	53,558	59,213
Amortization expense	$ 19,400	$ 19,900	$ 17,000

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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-Name Accounting Standards Codification
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The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Costs incurred and are directly related to generating maintenance revenues. Also includes cost of maintenance on client contracts.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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