Other comprehensive income (loss) (Tables)

12 Months Ended

Mar. 31, 2016

Accumulated other comprehensive income (loss)

Changes in accumulated other comprehensive income (loss)

	Millions of yen
	For the year ended March 31, 2015
	Balance at beginning of year			Other comprehensive income (loss) before reclassifications		Reclassifications out  of accumulated other comprehensive income (loss)			Net change during the year		Balance at end of year
Cumulative translation adjustments	¥	27,704		¥	110,679	¥	(5,012	)	¥	105,667	¥	133,371
Pension liability adjustment		(18,809	)		2,768		637			3,405		(15,404	)
Net unrealized gain on non-trading securities		11,741			16,588		(2,557	)		14,031		25,772
Total	¥	20,636		¥	130,035	¥	(6,932	)	¥	123,103	¥	143,739

	Millions of yen
	For the year ended March 31, 2016
	Balance at beginning of year			Other comprehensive income (loss) before reclassifications			Reclassifications out  of accumulated other comprehensive income (loss)			Net change during the year			Balance at end of year
Cumulative translation adjustments	¥	133,371		¥	(79,108	)	¥	(845	)	¥	(79,953	)	¥	53,418
Pension liability adjustment		(15,404	)		(18,097	)		176			(17,921	)		(33,325	)
Net unrealized gain on non-trading securities		25,772			363			(1,248	)		(885	)		24,887
Total	¥	143,739		¥	(96,842	)	¥	(1,917	)	¥	(98,759	)	¥	44,980

Reclassifications out of accumulated other comprehensive income (loss)

	Millions of yen
	For the year ended March 31
	2015			2016		Affected line items in consolidated statements of income
	Reclassifications out  of accumulated other comprehensive income (loss)			Reclassifications out  of accumulated other comprehensive income (loss)
Cumulative translation adjustments:
	¥	5,995		¥	845	Revenue—Other
		(983	)		—	Income tax expense
		5,012			845	Net income
		—			—	Net income attributable to noncontrolling interests
	¥	5,012		¥	845	Net income attributable to NHI shareholders

	Millions of yen
	For the year ended March 31
	2015			2016			Affected line items in consolidated statements of income
	Reclassifications out  of accumulated other comprehensive income (loss)			Reclassifications out  of accumulated other comprehensive income (loss)
Net unrealized gain on non-trading securities:
	¥	4,879		¥	2,724		Revenue—Other
		(1,481	)		(1,081	)	Income tax expense
		3,398			1,643		Net income
		(841	)		(395	)	Net income attributable to noncontrolling interests
	¥	2,557		¥	1,248		Net income attributable to NHI shareholders