Summary of Significant Accounting Policies - Revenue Recognition (Details) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($) contract	Mar. 31, 2020 USD ($) contract	Mar. 31, 2019 USD ($) contract
Summary of Significant Accounting Policies
Revenues	$ 257,154	$ 253,252	$ 771,834	$ 759,438
School operating losses included in the entity's revenue	11,000	9,200	$ 38,500	43,200
Minimum
Summary of Significant Accounting Policies
Duration of contracts providing access to curriculum via the entity's Web site			1 year
Maximum
Summary of Significant Accounting Policies
Duration of contracts providing access to curriculum via the entity's Web site			2 years
Primary Obligor
Summary of Significant Accounting Policies
Revenues	$ 78,300	$ 85,800	$ 247,700	$ 259,900
Revenue \| Customer Concentration Risk
Summary of Significant Accounting Policies
Number of customers with concentration \| contract	0	1	0	1
Concentration risk (as a percent)	10.00%	10.00%	10.00%	10.00%

Represents the number of customers in which the entity has a concentration of risk.

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- Definition

The duration of contracts providing access to curriculum via the entity's Web site. The entity recognizes revenues over the term of the contract.

+ References

No definition available.

+ Details

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- Definition

Represents the reduction in revenue attributable to school operating losses at schools where the reporting entity provides turnkey management services.

+ References

No definition available.

+ Details

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- References

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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