Condensed Consolidated Statements of Mezzanine Equity - USD ($) shares in Thousands, $ in Thousands	Total	Redeemable Non-controlling Interest in Subsidiaries [Member]	Redeemable Convertible Preferred Stock [Member]	Deferred Compensation - Unearned ESOP Shares [Member]	Total Mezzanine Equity [Member]
Beginning Balance, Value at Mar. 31, 2018		$ 8,471	$ 291,247	$ (190,168)	$ 109,550
Beginning Balance, Shares at Mar. 31, 2018			23,300	15,219
Net income (loss)		338			338
Other comprehensive (income) loss	$ (4,812)
Redeemable convertible preferred stock dividends	(497)
Common stock dividends	(4,545)
Dividend paid to non-controlling interest holder	(735)	(335)			(335)
Allocation of ESOP shares to participants for compensation	1,625			$ 2,396	2,396
Allocation of ESOP shares to participants for Compensation, Shares				(192)
Exercise of common stock options	2,513
Restricted stock awards	735
Stock-based compensation expense	773
ESOP distribution in common stock			$ (3,910)		(3,910)
ESOP distribution in common stock, Shares			(313)
Ending Balance, Value at Jun. 30, 2018		$ 8,474	$ 287,337	$ (187,772)	108,039
Ending Balance, Shares at Jun. 30, 2018			22,987	15,027
Beginning Balance, Value at Mar. 31, 2019	102,322		$ 282,638	$ (180,316)	102,322
Beginning Balance, Shares at Mar. 31, 2019			22,611	14,452
Other comprehensive (income) loss	1,564
Redeemable convertible preferred stock dividends	(6,846)
Common stock dividends	(63,107)
Allocation of ESOP shares to participants for compensation	2,490			$ 3,094	3,094
Allocation of ESOP shares to participants for Compensation, Shares				248
ESOP special dividend compensation				$ 145,563	145,563
ESOP special dividend compensation, shares				11,645
Exercise of common stock options	1,461
Restricted stock awards	(92)
Stock-based compensation expense	1,841
ESOP distribution in common stock			$ (2,822)		(2,822)
ESOP distribution in common stock, Shares			(226)
Ending Balance, Value at Jun. 30, 2019	$ 248,157		$ 279,816	$ (31,659)	$ 248,157
Ending Balance, Shares at Jun. 30, 2019			22,385	2,559