Fair Value of Assets & Liabilities - Narrative (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Fair value, asset (liability), unrealized gain (loss), OCI	$ 0	$ 0
Corporate
Segment Reporting Information [Line Items]
Fixed asset impairments	4,800,000
Disposition of Acquired Properties \| Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		4,600,000
Reversed asset impairment charges		700,000
Disposition of Acquired Properties \| 2019 Business Optimization \| Corporate
Segment Reporting Information [Line Items]
Asset impairment charges	$ 4,200,000	1,500,000
Leased Assets \| 2019 Business Optimization \| Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		14,000,000.0
Reversed asset impairment charges		1,400,000
Leased Assets \| Rebranding Initiative \| Corporate
Segment Reporting Information [Line Items]
Asset impairment charges		$ 7,100,000

Reversed Asset Impairment Charges

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of unrealized gain (loss) recognized in other comprehensive income (OCI) from asset (liability) measured at fair value on recurring basis using unobservable input (level 3) and still held.

+ References

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- Definition

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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