Fair Value Measurements - Summary of Quantitative Information About Level 3 Fair Value Measurements (Details)	Jun. 30, 2020 USD ($)
Family Dining Restaurant | Jacksonville, FL | Measurement Input, Terminal Value | Discounted cash flow approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Significant Unobservable Inputs	0.080
Family Dining Restaurant | Jacksonville, FL | Measurement Input, Discount Rate | Discounted cash flow approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Significant Unobservable Inputs	0.085
Level 3 | Vacant | Sylacauga, AL | Sales comparison approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 187,000,000
Level 3 | Vacant | Waterloo, IA | Sales comparison approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	550,000,000
Level 3 | Family Dining Restaurant | Jacksonville, FL | Discounted cash flow approach
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 709,000,000