Shareholders' Equity - Additional Information (Detail) - USD ($)	Mar. 31, 2022	Mar. 31, 2021
Stockholders Equity Note [Abstract]
Common shares, shares authorized	75,000,000	75,000,000
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares outstanding	21,042,652	21,042,652
Treasury stock, shares	31,923,145	31,923,145
Preferred shares, shares issued	3,677	3,677
Preferred shares, shares outstanding	3,677	3,677
Preferred shares, par value	$ 0.01
Preferred shares, liquidation preference	$ 3,677,000	$ 3,677,000