Share-based Payments (Tables)

12 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

The following table summarizes the stock option activity:


	For the Year Ended March 31
	2024			2025			2026
	Number of options (shares)	Weighted average exercise price (JPY)		Number of options (shares)	Weighted average exercise price (JPY)		Number of options (shares)	Weighted average exercise price (JPY)
As of beginning of the year	3,303,600	¥	4,111	3,180,900	¥	4,136	3,168,900	¥	4,138
Exercised	(122,700)	3,464		(12,000)	3,712		(279,500)	3,840
As of end of the year	3,180,900	4,136		3,168,900	4,138		2,889,400	4,166

Summary of Weighted Average Fair Value of Awards at Grant Date

The weighted average fair value of the award points/units at the grant date is as follows (in JPY):


	For the Year Ended March 31
	2024		2025		2026
BIP:
Weighted average fair value at grant date	¥	4,527	¥	4,192	¥	4,394
ESOP:
Weighted average fair value at grant date	4,527		4,192		4,394
Equity-Settled LTIP:
Weighted average fair value at grant date	2,273 (USD15.71 in contractual currency)		2,092 (USD13.00 in contractual currency)		2,215 (USD15.37 in contractual currency)

Schedule of Award Activity related to Other Awards

The following table summarizes the award activity related to the BIP (the number of award points) (1 award point represents 1 share of the Company's common stock), ESOP (the number of award points) (1 award point represents 1 share of the Company's common stock) and Equity-settled LTIP (the number of award units) (1 award unit represents 1 share of the ADS). One ADS equals 0.5 of the Company's common stock:


	For the Year Ended March 31
	2024			2025			2026
	BIP	ESOP	Equity-Settled LTIP	BIP	ESOP	Equity-Settled LTIP	BIP	ESOP	Equity-Settled LTIP
At beginning of the year	1,311,989	773,844	59,752,598	1,199,972	746,762	65,410,484	1,070,188	665,377	70,266,342
Granted	338,189	363,559	36,531,621	331,999	363,868	44,722,656	423,407	290,201	38,351,586
Forfeited/expired before vesting	—	(39,545)	(4,747,804)	—	(98,350)	(10,023,316)	—	(57,786)	(8,366,464)
Vested	(450,206)	(351,096)	(25,916,216)	(461,783)	(346,903)	(29,843,482)	(540,079)	(323,079)	(31,949,014)
Transfer to Cash-Settled LTIP	—	—	(209,715)	—	—	—	—	—	—

At end of the year	1,199,972	746,762	65,410,484	1,070,188	665,377	70,266,342	953,516	574,713	68,302,450

The following table summarizes the award activity related to the PSARs (the number of awards) (1 award represents 1 share of the Company's common stock) :


	For the Year Ended March 31
	2024			2025			2026
	Number of PSARs	Weighted average exercise price (JPY)		Number of PSARs	Weighted average exercise price (JPY)		Number of PSARs	Weighted average exercise price (JPY)
As of beginning of the year	217,530	¥	5,956	—	¥	—	—	¥	—



Forfeited/expired after vesting	(217,530)	6,428		—	—		—	—
As of end of the year	—	—		—	—		—	—

The following table summarizes the award activity related to the Cash-Settled LTIP Awards (the number of awards) (1 award represents 1 ADS):


	For the Year Ended March 31
	2024	2025	2026
As of the beginning of the year	367,642	395,762	371,668
Granted	197,798	341,518	481,374
Forfeited/expired before vesting	(38,245)	(53,520)	(47,122)
Vested	(341,148)	(312,092)	(457,680)
Transfer from Equity-Settled LTIP	209,715	—	—
As of the end of the year	395,762	371,668	348,240