Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Net Loss	$ (28,475)	$ (45,072)	$ (96,009)	$ (83,770)
Other Comprehensive Income (Loss):
Foreign currency translation adjustments	226,788	232,035	118,885	99,664
Pension adjustment, net of taxes	57	403	348	442
Comprehensive Income	171,041	182,489	(1,167)	44,527
Comprehensive Loss Attributable to Noncontrolling Interests	(1,484)	0	(1,484)	0
Foreign Currency Translation Adjustments Attributable to Noncontrolling Interests	1,065	0	1,065	0
Comprehensive Income Attributable to Coherent Corp.	171,460	182,489	(748)	44,527
Interest Rate Swap
Other Comprehensive Income (Loss):
Change in fair value of interest rate swap and interest rate cap, net of taxes	(8,013)	(334)	(12,675)	12,270
Interest Rate Cap
Other Comprehensive Income (Loss):
Change in fair value of interest rate swap and interest rate cap, net of taxes	$ (19,316)	$ (4,543)	$ (11,716)	$ 15,921