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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Revenue recognition
Amounts recorded as revenues and school operating expenses	$ 89.1us-gaap_CostOfReimbursableExpense	$ 71.3us-gaap_CostOfReimbursableExpense	$ 241.9us-gaap_CostOfReimbursableExpense	$ 190.8us-gaap_CostOfReimbursableExpense
Reduction in school operating losses included in the entity's revenue	$ 12.5lrn_RevenueReductionSchoolOperatingLosses	$ 14.1lrn_RevenueReductionSchoolOperatingLosses	$ 45.2lrn_RevenueReductionSchoolOperatingLosses	$ 39.8lrn_RevenueReductionSchoolOperatingLosses
Minimum
Revenue recognition
Duration of contracts providing access to curriculum via the entity's Web site			1 year
Maximum
Revenue recognition
Duration of contracts providing access to curriculum via the entity's Web site			2 years

X

- 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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X

- 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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Namespace Prefix:	lrn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Details

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- Definition

Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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