Annual report [Section 13 and 15(d), not S-K Item 405]

Supplemental Equity and Accumulated Other Comprehensive Income (Loss) Information - Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Details)

Supplemental Equity and Accumulated Other Comprehensive Income (Loss) Information - Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Balance	$ 2,068,850	$ 1,966,516	$ 1,701,011
Other comprehensive income (loss), before tax:
Amounts before reclassifications	25,831	16,647	(1,340)
Amounts reclassified out	11,209	13,527	4,526
Other comprehensive income (loss) attributable to Bio-Techne	18,436	(12,252)	9,136
Balance	1,918,808	2,068,850	1,966,516
Unrealized Gains (Losses) on Debt Securities
Balance	8,102	12,862	8,069
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(12,011)	(12,632)	1,340
Amounts reclassified out	8,448	10,317	4,526
Total other comprehensive income (loss), before tax	(3,563)	(2,315)	5,866
Tax (expense) benefit	(2,003)	(2,445)	(1,073)
Other comprehensive income (loss) attributable to Bio-Techne	(5,566)	(4,760)	4,793
Balance	2,536	8,102	12,862
Foreign Currency Translation Adjustments
Balance	(86,418)	(78,926)	(83,269)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	21,895	(9,941)	4,191
Amounts reclassified out	2,761	3,210	152
Total other comprehensive income (loss), before tax	24,656	(6,731)	4,343
Tax (expense) benefit	(654)	(761)
Other comprehensive income (loss) attributable to Bio-Techne	24,002	(7,492)	4,343
Balance	(62,416)	(86,418)	(78,926)
Accumulated Other Comprehensive Income (Loss)
Balance	(78,316)	(66,064)	(75,200)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	9,884	(22,573)	5,531
Amounts reclassified out	11,209	13,527	4,678
Total other comprehensive income (loss), before tax	21,093	(9,046)	10,209
Tax (expense) benefit	(2,657)	(3,206)	(1,073)
Other comprehensive income (loss) attributable to Bio-Techne	18,436	(12,252)	9,136
Balance	$ (59,880)	$ (78,316)	$ (66,064)