Segment Reporting (Tables)

12 Months Ended

Mar. 31, 2026

Segment Reporting [Abstract]

Summary of Net Revenue by Geographic Areas

The information below summarizes net revenue by geographic areas for the years ended March 31, 2026, 2025 and 2024:


		Year ended March 31, 2026
		Transaction revenue				Interest income on customer balances				Interest expense on customer liabilities				Net revenue
		(In million)				(In million)				(In million)				(In million)
Europe (excluding UK)		$	569.4			$	271.1			$	(127.3	)		$	713.2
Asia-Pacific			450.5				65.4				—				515.9
United States of America			261.9				160.1				(56.8	)			365.2
United Kingdom			329.1				257.2				—				586.3
Rest of the world			282.7				52.3				(12.8	)			322.2
Total transaction revenue		$	1,893.6			$	806.1			$	(196.9	)		$	2,502.8


		Year ended March 31, 2025
		Transaction revenue				Interest income on customer balances				Interest expense on customer liabilities				Net revenue
		(In million)				(In million)				(In million)				(In million)
Europe (excluding UK)		$	467.0			$	281.1			$	(154.8	)		$	593.3
Asia-Pacific			336.5				47.0				—				383.5
United States of America			229.7				136.9				(49.1	)			317.5
United Kingdom			288.9				258.8				—				547.7
Rest of the world			224.2				34.5				(1.8	)			256.9
Total transaction revenue		$	1,546.3			$	758.3			$	(205.7	)		$	2,098.9


		Year ended March 31, 2024
		Transaction revenue				Interest income on customer balances				Interest expense on customer liabilities				Net revenue
		(In million)				(In million)				(In million)				(In million)
Europe (excluding UK)		$	404.6			$	231.8			$	(135.6	)		$	500.8
Asia-Pacific			272.0				25.5				—				297.5
United States of America			209.6				101.9				(21.4	)			290.1
United Kingdom			254.8				223.9				—				478.7
Rest of the world			182.1				26.9				—				209.0
Total transaction revenue		$	1,323.1			$	610.0			$	(157.0	)		$	1,776.1