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Earnings Per Share (Narratives) (Details) - USD ($)		3 Months Ended			6 Months Ended
Earnings Per Share (Narratives) (Details) - USD ($)	Oct. 18, 2021	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment		338,000		0	363,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period					38,744
Common Stock, Dividends, Per Share, Declared	$ 0.06	$ 0.06		$ 0.06	$ 0.06	$ 0.06
Proceeds from Other Equity		$ 198,705,000	$ 198,705,000
Stock Issued During Period, Shares, New Issues		4,312,500	4,312,500
2016 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares of common stock available for grant		2,500,000			2,500,000
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount				1,149,000	157,707	1,149,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount					120,000
Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends	$ 1,710,000