Credit Facility (Details)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Mar. 30, 2020	Aug. 05, 2014 USD ($)
Line of Credit Facility [Line Items]
Prepayment of term loan	$ 42,594,000	$ 20,711,000	$ 15,063,000
Deferred financing costs, current	1,635,000	920,000
Deferred financing costs, noncurrent	261,000	1,062,000
Regions Bank
Line of Credit Facility [Line Items]
Credit agreement, amount outstanding	212,900,000
Leverage ratio				5.0
Net leverage ratio				3.50
Regions Bank | Secured Syndicated Credit Facility, Ninth Amendment
Line of Credit Facility [Line Items]
Credit card origination costs	4,700,000	4,900,000
Revolving Credit Facility | Regions Bank
Line of Credit Facility [Line Items]
Credit agreement, maximum borrowing capacity					$ 450,000,000
Revolving Credit Facility | Regions Bank | Secured Syndicated Credit Facility
Line of Credit Facility [Line Items]
Credit agreement, amount outstanding	$ 439,400,000	439,400,000
Line of credit, interest rate at period end	5.50%
Credit agreement, average amount outstanding during period	$ 439,400,000	438,900,000
Credit agreement, maximum amount outstanding during period	$ 439,400,000	$ 439,400,000
Weighted average interest rate	5.20%	4.04%
Proceeds from lines of credit		$ 1,400,000
Interest rate		3.50%
Revolving Credit Facility | Regions Bank | Secured Syndicated Credit Facility, Ninth Amendment
Line of Credit Facility [Line Items]
Credit card origination costs	$ 2,800,000	$ 2,900,000
Secured Term Loan | Regions Bank | Secured Syndicated Credit Facility, Ninth Amendment
Line of Credit Facility [Line Items]
Line of credit, interest rate at period end	5.50%
Credit agreement, maximum amount outstanding during period		$ 255,500,000
Weighted average interest rate	5.12%	4.04%
Loans payable	$ 212,900,000
Loans payable, current	28,200,000	$ 22,600,000
Prepayment of term loan	42,600,000
Periodic payment	22,600,000
Long-term debt, gross	184,600,000
Interest rate		3.50%
Credit card origination costs	1,900,000	$ 2,000,000
Deferred financing costs, current	1,600,000	919,000
Deferred financing costs, noncurrent	$ 261,000	$ 1,100,000