Real Estate Activities - Components of Total Investment in Financing Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Direct Financing Lease Net Investment In Leases [Abstract]
Minimum lease payments receivable	$ 1,884,921	$ 2,091,504
Estimated residual values	394,195	424,719
Less unearned income	(1,618,252)	(1,832,170)
Net investment in direct financing leases	660,864	684,053
Other financing leases	1,399,438
Total investment in financing leases	$ 2,060,302	$ 684,053

Other financing leases.

No definition available.

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- Definition

Amount of deferred selling profit from direct financing lease.

+ References

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

+ Details

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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

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of net investment in direct financing lease.

+ References

+ Details

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- References

No definition available.

+ Details

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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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of net investment in sales-type and direct financing lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77888421&loc=SL77919306-209978

+ Details

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