Real Estate and Lending Activities - Loans - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended
Mar. 01, 2012	Jun. 30, 2015
Significant Acquisitions and Disposals [Line Items]
Amount of convertible note converted into equity interest	$ 1.7
Convertible note	$ 5.0
Percentage of equity shares from convertible debt	9.90%	15.10%
Remaining convertible debt after conversion of part of debt		$ 3.3
Ernest Transaction and Other Acquisitions [Member]
Significant Acquisitions and Disposals [Line Items]
Existing mortgage loans		114.4
Median Kliniken [Member]
Significant Acquisitions and Disposals [Line Items]
Existing mortgage loans		$ 376.8

Percentage of equity shares from convertible debt

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- Definition

Remaining convertible debt after conversion of part of debt

+ References

No definition available.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

+ References

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

-Publisher FASB

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

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- Definition

Total carrying amount of mortgage loans as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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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.

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