Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (62,134)	$ (23,317)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation	4,244	2,201
Depreciation	91	50
Amortization of debt discount and issuance costs	507	0
Foreign currency translation adjustment	425	264
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(563)	(1,961)
Deferred tax assets	0	208
Income tax receivable	145	0
Other assets	288	(3,074)
Accounts payable	389	(143)
Income tax payable	0	826
Interest payable	90	0
Accrued expenses	8,040	(686)
Due to RSL, RSI and RSG	3,247	(1,030)
Deferred rent	324	105
Deferred interest payable	152	0
Net cash used in operating activities	(44,755)	(26,557)
Cash flows from investing activities:
Purchase of furniture and equipment	(197)	(90)
Net cash used in investing activities	(197)	(90)
Cash flows from financing activities:
Cash proceeds from stock option exercises	76	0
Net cash provided by financing activities	79,963	0
Net change in cash	35,011	(26,647)
Cash—beginning of period	108,624	180,838
Cash—end of period	143,635	154,191
Non-cash financing activities:
Deferred financing costs, unpaid	72	0
Cowen and Company, LLC
Cash flows from financing activities:
Cash proceeds from issuance of common shares	57,387	0
Roivant Sciences, Ltd.
Cash flows from financing activities:
Cash proceeds from issuance of common shares	$ 22,500	$ 0