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Leasing Arrangements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Leases Disclosure [Line Items]
Weighted average remaining lease term	20 years		20 years
Lease Term			20 years
Percent rents in excess of minimum rents	$ 68.4	$ 75.0	$ 130.5	$ 144.7
Lease right-of-use asset, net	$ 12,522.8		$ 12,522.8		$ 12,500.0	$ 0.0
Weighted Average Discount Rate, Percent	4.00%		4.00%
Minimum [Member]
Leases Disclosure [Line Items]
Escalation Timing	1 year
Maximum [Member]
Leases Disclosure [Line Items]
Escalation Timing	5 years

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Escalation Timing

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- Definition

Lease Term

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Leases Disclosure [Line Items]

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Percentage rent expense based on sales in excess of minimum rents.

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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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.

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