Consolidated Condensed Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans receivable, allowance (in dollars)	$ 71,367	$ 82,079
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	4,963,000	4,963,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common Stock, Shares, Issued	43,297,260	43,297,260
Common stock, shares outstanding	37,177,605	37,291,480
Accumulated other comprehensive income, tax effect (in dollars)	$ 2,911	$ 3,988
Treasury stock, shares	6,119,655	6,005,780
Cumulative Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	37,000	37,000
Preferred stock, shares issued	0	0