Basis of Presentation - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Proceeds from line of credit		$ 0	$ 220,000
Revolving Credit Facility
Debt Instrument [Line Items]
Proceeds from line of credit	$ 220,000
Applebee's
Debt Instrument [Line Items]
Percentage of restaurants operating at full capacity		98.00%
Percent of deferred payments collected		98.00%
IHOP
Debt Instrument [Line Items]
Percentage of restaurants operating at full capacity		99.00%
Percent of deferred payments collected		87.00%