Investment in Rental Property and Lease Arrangements - Minimum Future Rental Receipts Required under Non-cancelable Direct Financing Leases (Detail) $ in Thousands	Jun. 30, 2017 USD ($)
Direct Financing Leases Lease Receivable Fiscal Year Maturity [Abstract]
Remainder of 2017	$ 1,894
2018	3,857
2019	3,931
2020	4,037
2021	4,126
Thereafter	61,939
Minimum future rental receipts required under non-cancelable direct financing leases	$ 79,784

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Direct financing leases, lease receivable payments to be received.

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Direct financing leases, lease receivable payments to be received five years.

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Direct financing leases, lease receivable payments to be received four years.

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Direct financing leases, lease receivable payments to be received remainder of fiscal year.

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Direct financing leases, lease receivable payments to be received thereafter.

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Direct financing leases, lease receivable payments to be received three years.

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Direct financing leases, lease receivable payments to be received two years.

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