Equity (Details) - USD ($)	1 Months Ended		12 Months Ended
	Sep. 30, 2017	Oct. 31, 2016	Dec. 31, 2021	Dec. 31, 2020
Common Stock Repurchase
Repurchase of common stock authorized by Board of Directors				$ 60,000,000
Common stock repurchased, value			$ 10,086,000	$ 1,510,000
Weighted average price per share (in dollars per share)			$ 37.57	$ 27.24
Stock repurchase program, remaining authorized repurchase amount			$ 44,800,000
Redeemable preferred stock - shares issued (in shares)			2,500,000	2,500,000
Dividend rate			6.50%
Redeemable preferred stock - par value (in dollars per share)			$ 0.01	$ 0.01
Liquidation preference (in dollars per share)			20.00
Redemption price (in dollars per share)			$ 20.00
Common Stock
Common Stock Repurchase
Shares repurchased (in shares)			268,408	55,426
Common stock repurchased, value			$ 3,000
Series A-1 Preferred Stock
Common Stock Repurchase
Redeemable preferred stock - shares issued (in shares)		1,000,000
Dividend rate		6.50%
Redeemable preferred stock - par value (in dollars per share)		$ 0.01
Purchase price (in dollars per share)		$ 20.00
Net proceeds after deducting investor fees		$ 19,800,000
Preferred stock dividends			$ 3,300,000	$ 3,300,000
Series A-2 Preferred Stock
Common Stock Repurchase
Redeemable preferred stock - shares issued (in shares)	1,500,000
Dividend rate	6.50%
Redeemable preferred stock - par value (in dollars per share)	$ 0.01
Purchase price (in dollars per share)	$ 20.00
Net proceeds after deducting investor fees	$ 29,700,000