The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Other Assets (Details) - USD ($)	3 Months Ended	9 Months Ended		12 Months Ended
Other Assets (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Schedule of Equity Method Investments
Investment grade corporate and municipal bond held to maturity	$ 114,300,000	$ 114,300,000
Interest receivable	689,000	689,000
Allowance for credit loss	$ 0	0
Purchase of equity investment common shares		$ 0	$ 10,000,000
Record Holdings
Schedule of Equity Method Investments
Purchase of equity investment common shares				$ 10,000,000
Ownership percentage (percent)				18.00%