Number Of States In Which Property Is Located

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Number of Real Estate Properties To Be Sold Or Rebranded

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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 investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Cost of the investment.

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Balance held at close of period in number of shares.

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Amount of unrealized gain (loss) on investment in marketable security.

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The number of real estate properties owned as of the balance sheet date.

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Fair Value of Assets and Liabilities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) retail_property state property shares	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 20, 2019 state
Fair Value of Assets and Liabilities
Number of real estate properties to be sold or rebranded \| property	19
Number of properties \| retail_property	816
Number of states in which property is located \| state	12			45
Loss on asset impairment	$ 39,296	$ 0	$ 0
Investment in TA
Fair Value of Assets and Liabilities
Unrealized gain (loss) on equity securities	$ (1,129)
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Investment in TA
Fair Value of Assets and Liabilities
Shares included in investment securities (in shares) \| shares	684,000
Historical cost of securities	$ 17,407
Recurring \| Carrying amount \| Investment in TA
Fair Value of Assets and Liabilities
Investment securities	11,731
Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Investment in TA
Fair Value of Assets and Liabilities
Investment securities	11,731
Recurring \| Significant Other Observable Inputs (Level 2) \| Investment in TA
Fair Value of Assets and Liabilities
Investment securities	0
Recurring \| Significant Unobservable Inputs (Level 3) \| Investment in TA
Fair Value of Assets and Liabilities
Investment securities	0
Non-recurring
Fair Value of Assets and Liabilities
Loss on asset impairment	10,925
Non-recurring \| Carrying amount
Fair Value of Assets and Liabilities
Investment securities	87,493
Non-recurring \| Held and used
Fair Value of Assets and Liabilities
Loss on asset impairment	28,371
Non-recurring \| Held and used \| Carrying amount
Fair Value of Assets and Liabilities
Investment securities	38,000
Non-recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value of Assets and Liabilities
Investment securities	0
Non-recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Held and used
Fair Value of Assets and Liabilities
Investment securities	0
Non-recurring \| Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities
Investment securities	0
Non-recurring \| Significant Other Observable Inputs (Level 2) \| Held and used
Fair Value of Assets and Liabilities
Investment securities	0
Non-recurring \| Significant Unobservable Inputs (Level 3)
Fair Value of Assets and Liabilities
Investment securities	90,122
Non-recurring \| Significant Unobservable Inputs (Level 3) \| Held and used
Fair Value of Assets and Liabilities
Investment securities	$ 38,000