Condensed Consolidated Statements of Shareholders' Deficit - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Mar. 31, 2021		91,000,869
Beginning balance at Mar. 31, 2021	$ (353,965)	$ 2	$ 709,466	$ (17,285)	$ (1,046,148)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	11,262		11,262
Share-based compensation liabilities reclassified to equity upon settlement of awards	1,862		1,862
Share-based compensation reclassified to current liabilities	(1,377)		(1,377)
Issuance of shares upon exercise of stock options and release of share awards (in shares)		941,774
Issuance of shares upon exercise of stock options and release of share awards	4,252		4,252
Net loss	(61,660)				(61,660)
Ending balance (in shares) at Jun. 30, 2021		91,942,643
Ending balance at Jun. 30, 2021	(399,626)	$ 2	725,465	(17,285)	(1,107,808)
Beginning balance (in shares) at Mar. 31, 2021		91,000,869
Beginning balance at Mar. 31, 2021	(353,965)	$ 2	709,466	(17,285)	(1,046,148)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(146,696)
Ending balance (in shares) at Dec. 31, 2021		93,658,206
Ending balance at Dec. 31, 2021	(432,283)	$ 2	777,844	(17,285)	(1,192,844)
Beginning balance (in shares) at Jun. 30, 2021		91,942,643
Beginning balance at Jun. 30, 2021	(399,626)	$ 2	725,465	(17,285)	(1,107,808)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	11,863		11,863
Share-based compensation liabilities reclassified to equity upon settlement of awards	16,297		16,297
Share-based compensation reclassified to current liabilities	(915)		(915)
Issuance of shares upon exercise of stock options and release of share awards (in shares)		1,135,146
Issuance of shares upon exercise of stock options and release of share awards	11,045		11,045
Net loss	(21,591)				(21,591)
Ending balance (in shares) at Sep. 30, 2021		93,077,789
Ending balance at Sep. 30, 2021	(382,927)	$ 2	763,755	(17,285)	(1,129,399)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	7,199		7,199
Share-based compensation liabilities reclassified to equity upon settlement of awards	2,491		2,491
Share-based compensation reclassified to current liabilities	554		554
Issuance of shares upon exercise of stock options and release of share awards (in shares)		580,417
Issuance of shares upon exercise of stock options and release of share awards	2,565		2,565
Capital contribution -other	1,280		1,280
Net loss	(63,445)				(63,445)
Ending balance (in shares) at Dec. 31, 2021		93,658,206
Ending balance at Dec. 31, 2021	$ (432,283)	$ 2	777,844	(17,285)	(1,192,844)
Beginning balance (in shares) at Mar. 31, 2022	94,858,446	94,858,446
Beginning balance at Mar. 31, 2022	$ (473,477)	$ 2	795,935	(17,285)	(1,252,129)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	10,001		10,001
Issuance of shares upon exercise of stock options and release of share awards (in shares)		798,586
Issuance of shares upon exercise of stock options and release of share awards	1,191		1,191
Net loss	(21,239)				(21,239)
Ending balance (in shares) at Jun. 30, 2022		95,657,032
Ending balance at Jun. 30, 2022	$ (483,524)	$ 2	807,127	(17,285)	(1,273,368)
Beginning balance (in shares) at Mar. 31, 2022	94,858,446	94,858,446
Beginning balance at Mar. 31, 2022	$ (473,477)	$ 2	795,935	(17,285)	(1,252,129)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares upon exercise of stock options and release of share awards (in shares)	826,331
Net loss	$ (124,485)
Ending balance (in shares) at Dec. 31, 2022	97,028,258	97,028,258
Ending balance at Dec. 31, 2022	$ (558,143)	$ 2	835,754	(17,285)	(1,376,614)
Beginning balance (in shares) at Jun. 30, 2022		95,657,032
Beginning balance at Jun. 30, 2022	(483,524)	$ 2	807,127	(17,285)	(1,273,368)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	11,901		11,901
Issuance of shares upon exercise of stock options and release of share awards (in shares)		900,620
Issuance of shares upon exercise of stock options and release of share awards	3,993		3,993
Net loss	(45,619)				(45,619)
Ending balance (in shares) at Sep. 30, 2022		96,557,652
Ending balance at Sep. 30, 2022	(513,249)	$ 2	823,021	(17,285)	(1,318,987)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	11,203		11,203
Issuance of shares upon exercise of stock options and release of share awards (in shares)		470,606
Issuance of shares upon exercise of stock options and release of share awards	1,530		1,530
Net loss	$ (57,627)				(57,627)
Ending balance (in shares) at Dec. 31, 2022	97,028,258	97,028,258
Ending balance at Dec. 31, 2022	$ (558,143)	$ 2	$ 835,754	$ (17,285)	$ (1,376,614)