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Discontinued Operations, Exit Activities, And Clinic Obligations - Additional Disclosure (Detail)	3 Months Ended	6 Months Ended
	Mar. 31, 2016	Dec. 31, 2014	Jun. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Corporate Centres Sold During Period	41	17	24
Corporate Centres Closed During Period	34

X

- Definition

Number of corporate centers closed during the reporting period.

+ References

No definition available.

+ Details

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- Definition

Number of corporate centers sold during the reporting period.

+ References

No definition available.

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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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