Long-Term Debt (Details)	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 31, 2018 USD ($)
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000,000
Allowable Amount for Issuance of Letters of Credit	$ 20,000,000		$ 30,000,000
Debt Instrument, Covenant, Leverage Ratio	2
Debt Covenant, Minimum Net Income Requirement	$ 1
Debt Instrument, Covenant minimum tangible net worth	250,000,000
Long-term Line of Credit	0	$ 0
Letters of Credit Outstanding on a Line of Credit, Amount Outstanding	8,500,000	11,500,000
Line of Credit Facility, Remaining Borrowing Capacity	16,500,000	$ 88,500,000
Accordion Feature [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 100,000,000