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Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 830
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Amount of lease payments to be received by lessor for operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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- Definition

Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lease payment to be received by lessor for operating lease in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 30
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Amount of lease payment to be received by lessor for operating lease after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Summary of Significant Accounting Policies - Future Minimum Base Rent Payments (Details) $ in Thousands	Jun. 30, 2020 $ / €	Jun. 30, 2020 USD ($)	Jun. 30, 2020 $ / £	Jun. 30, 2020 $ / $	Dec. 31, 2019 $ / €	Dec. 31, 2019 $ / £
Accounting Policies [Abstract]
2020 (remainder)		$ 150,180
2021		304,123
2022		294,175
2023		271,729
2024		236,022
2025		195,891
Thereafter		914,492
Total		$ 2,366,612
Foreign currency exchange rate (gbp, eur per usd)	1.12		1.23	0.73	1.12	1.32