CONDENSED CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in Capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury Stock
Balance, beginning of the period (in shares) at Mar. 31, 2020		143,938,753				(78,081,314)
Balance, beginning of the period at Mar. 31, 2020	$ 1,087,512	$ 14,394	$ 1,496,565	$ 1,545,094	$ 5,745	$ (1,974,286)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances (in shares)		566,704				(174,622)
Employee stock awards, benefit plans and other issuances	(705)	$ 56	8,621			$ (9,382)
Non-cash stock-based compensation (in shares)		17,548
Non-cash stock-based compensation	44,917	$ 2	44,915
Restricted stock units vested (in shares)		1,169,530
Restricted stock units vested		$ 117	(117)
Acquisition of treasury stock (in shares)						(1,321,666)
Acquisition of treasury stock	(42,312)					$ (42,312)
Liability-classified restricted stock units vested (in shares)		780,400
Liability-classified restricted stock units vested	24,441	$ 78	24,363
Other comprehensive income (loss):
Foreign currency translation	2,069				2,069
Net loss	(57,421)			(57,421)
Balance, end of the period (in shares) at Dec. 31, 2020		146,472,935				(79,577,602)
Balance, end of the period at Dec. 31, 2020	1,058,501	$ 14,647	1,574,347	1,487,673	7,814	$ (2,025,980)
Balance, beginning of the period (in shares) at Sep. 30, 2020		145,705,138				(79,516,592)
Balance, beginning of the period at Sep. 30, 2020	1,050,862	$ 14,570	1,552,303	1,499,398	6,944	$ (2,022,353)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances (in shares)		371,888				(61,010)
Employee stock awards, benefit plans and other issuances	1,489	$ 37	5,079			$ (3,627)
Non-cash stock-based compensation (in shares)		3,997
Non-cash stock-based compensation	17,005	$ 1	17,004
Restricted stock units vested (in shares)		391,912
Restricted stock units vested		$ 39	(39)
Other comprehensive income (loss):
Foreign currency translation	870				870
Net loss	(11,725)			(11,725)
Balance, end of the period (in shares) at Dec. 31, 2020		146,472,935				(79,577,602)
Balance, end of the period at Dec. 31, 2020	1,058,501	$ 14,647	1,574,347	1,487,673	7,814	$ (2,025,980)
Balance, beginning of the period (in shares) at Mar. 31, 2021		147,814,965				(79,585,710)
Balance, beginning of the period at Mar. 31, 2021	1,080,683	$ 14,781	1,630,072	1,454,826	7,522	$ (2,026,518)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances (in shares)		237,951				(280,521)
Employee stock awards, benefit plans and other issuances	(8,033)	$ 24	6,159			$ (14,216)
Non-cash stock-based compensation (in shares)		44,729
Non-cash stock-based compensation	43,238	$ 5	43,233
Restricted stock units vested (in shares)		895,230
Restricted stock units vested		$ 89	(89)
Acquisition of treasury stock (in shares)						(1,111,860)
Acquisition of treasury stock	(49,224)					$ (49,224)
Acquisition-related restricted stock award (in shares)		40,600
Acquisition-related restricted stock award		$ 4	(4)
Liability-classified restricted stock units vested (in shares)		218,414
Liability-classified restricted stock units vested	9,823	$ 22	9,801
Other comprehensive income (loss):
Foreign currency translation	(1,632)				(1,632)
Net loss	(4,441)			(4,441)
Balance, end of the period (in shares) at Dec. 31, 2021		149,251,889				(80,978,091)
Balance, end of the period at Dec. 31, 2021	1,070,414	$ 14,925	1,689,172	1,450,385	5,890	$ (2,089,958)
Balance, beginning of the period (in shares) at Sep. 30, 2021		148,870,184				(80,831,781)
Balance, beginning of the period at Sep. 30, 2021	1,072,947	$ 14,887	1,669,461	1,465,760	5,976	$ (2,083,137)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances (in shares)		71,721				(31,264)
Employee stock awards, benefit plans and other issuances	231	$ 7	1,898			$ (1,674)
Non-cash stock-based compensation (in shares)		6,815
Non-cash stock-based compensation	17,844	$ 1	17,843
Restricted stock units vested (in shares)		303,169
Restricted stock units vested	0	$ 30	(30)
Acquisition of treasury stock (in shares)						(115,046)
Acquisition of treasury stock	(5,147)					$ (5,147)
Other comprehensive income (loss):
Foreign currency translation	(86)				(86)
Net loss	(15,375)			(15,375)
Balance, end of the period (in shares) at Dec. 31, 2021		149,251,889				(80,978,091)
Balance, end of the period at Dec. 31, 2021	$ 1,070,414	$ 14,925	$ 1,689,172	$ 1,450,385	$ 5,890	$ (2,089,958)