Real Estate Investments - Tenant Leases (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Real Estate [Abstract]
Weighted average remaining lease term (in years)	10 years 2 months 12 days
2019	$ 151,914
2020	150,504
2021	147,506
2022	143,988
2023	139,573
Thereafter	902,448
Total	$ 1,635,933

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

+ References

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Future rental payments receivable within one year of the balance sheet date under an operating lease.

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- Definition

Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

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- Definition

Future rental payments receivable within the third year from the balance sheet date under an operating lease.

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- Definition

Future rental payments receivable within the second year from the balance sheet date under an operating lease.

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- Definition

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

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