Real Estate and Lending Activities - Components of Net Investment in Direct Financing Leases (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Direct Financing Lease Net Investment In Leases [Abstract]
Minimum lease payments receivable	$ 2,049,738	$ 2,091,504
Estimated residual values	419,753	424,719
Less: Unearned income	(1,780,600)	(1,832,170)
Net investment in direct financing leases	$ 688,891	$ 684,053

Amount of deferred selling profit from direct financing lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919379-209981

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- Definition

Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term, guaranteed by lessee or other third party unrelated to lessor, from direct financing lease.

+ References

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- Definition

Amount of net investment in direct financing lease.

+ References

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- References

No definition available.

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- Definition

Present value expected to be derived from underlying asset, following end of lease term, not guaranteed by lessee or other third party unrelated to lessor.

+ References

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