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No definition available.

Name:	sem_OperatingLossCarryforwardsExpiringInYearFour
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No definition available.

Name:	sem_OperatingLossCarryforwardsExpiringInYearThree
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No definition available.

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The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws, expiring after the fourth fiscal year following the latest fiscal year.

No definition available.

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- Details

Name:	sem_OperatingLossCarryforwardsValuationAllowanceAbstract
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The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized in the next fiscal year following the latest fiscal year.

No definition available.

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No definition available.

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No definition available.

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No definition available.

Name:	sem_ValuationAllowanceRelatedToOperatingLossCarryforwardsExpiringInYearTwo
Namespace Prefix:	sem_
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The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized after the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	sem_ValuationAllowanceRelatedToOperatingLossCarryforwardsExpiringThereafter
Namespace Prefix:	sem_
Data Type:	xbrli:monetaryItemType
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The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 48

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.