Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Paid-In Capital [Member]	Common Stock in Treasury [Member]	Accumulated Other Comprehensive Loss [Member]	Retained (Deficit) Earnings [Member]	Total ADS Stockholders' Equity [Member]	Non-controlling Interest in Subsidiaries [Member]
Beginning Balance, Value at Mar. 31, 2018	$ 324,259	$ 11,426	$ 364,908	$ (8,277)	$ (21,247)	$ (39,214)	$ 307,596	$ 16,663
Beginning Balance, Shares at Mar. 31, 2018		56,889		413
Net income (loss)	33,313					32,280	32,280	1,033
Other comprehensive (income) loss	(4,812)				(3,437)		(3,437)	(1,375)
Redeemable convertible preferred stock dividends	(497)					(497)	(497)
Common stock dividends	(4,545)					(4,545)	(4,545)
Dividend paid to non-controlling interest holder	(735)							(735)
Allocation of ESOP shares to participants for compensation	1,625		1,625				1,625
Exercise of common stock options	2,513	$ 2	3,215	$ (704)			2,513
Exercise of common stock options, Shares		217		26
Restricted stock awards	735	$ 1	786	$ (52)			735
Restricted stock awards, Shares		19		2
Stock-based compensation expense	773		773				773
ESOP distribution in common stock	3,910	$ 2	3,908				3,910
ESOP distributions in common stock, Shares		241
Ending Balance, Value at Jun. 30, 2018	356,539	$ 11,431	375,215	$ (9,033)	(24,684)	(11,976)	340,953	15,586
Ending Balance, Shares at Jun. 30, 2018		57,366		441
Beginning Balance, Value at Mar. 31, 2019	398,313	$ 11,436	391,039	$ (9,863)	(25,867)	17,582	384,327	13,986
Beginning Balance, Shares at Mar. 31, 2019		57,964		474
Net income (loss)	(227,451)					(226,356)	(226,356)	(1,095)
Other comprehensive (income) loss	1,564				1,397		1,397	167
Redeemable convertible preferred stock dividends	(6,846)					(6,846)	(6,846)
Common stock dividends	(63,107)					(63,107)	(63,107)
Allocation of ESOP shares to participants for compensation	2,490		2,490				2,490
ESOP special dividend compensation	101,189		101,189				101,189
Exercise of common stock options	1,461	$ 1	1,667	$ (207)			1,461
Exercise of common stock options, Shares		114		7
Restricted stock awards	(92)			$ (92)			(92)
Restricted stock awards, Shares		31		3
Stock-based compensation expense	1,841		1,841				1,841
ESOP distribution in common stock	2,822	$ 2	2,820				2,822
ESOP distributions in common stock, Shares		174
Ending Balance, Value at Jun. 30, 2019	$ 212,184	$ 11,439	$ 501,046	$ (10,162)	$ (24,470)	$ (278,727)	$ 199,126	$ 13,058
Ending Balance, Shares at Jun. 30, 2019		58,283		484