Real Estate and Lending Activities - Assets Acquired (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Significant Acquisitions and Disposals [Line Items]
Total assets acquired	$ 115,000	$ 75,000
Net investments in direct financing leases [Member]
Significant Acquisitions and Disposals [Line Items]
Total assets acquired		75,000
Land [Member]
Significant Acquisitions and Disposals [Line Items]
Total assets acquired	8,515
Building [Member]
Significant Acquisitions and Disposals [Line Items]
Total assets acquired	99,602
Intangible lease assets - subject to amortization [Member]
Significant Acquisitions and Disposals [Line Items]
Total assets acquired	$ 6,883