Commitments and Contingencies (Tables)

6 Months Ended

Dec. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Changes in Warranty Reserve

The following table presents the changes in our warranty reserve for the periods presented (in millions):

	Three Months Ended				Six Months Ended
	December 31, 2022		January 1, 2022		December 31, 2022		January 1, 2022
Balance as of beginning of period	$	10.1	$	5.1	$	10.0	$	5.0
Warranties assumed in NeoPhotonics merger	—		—		0.7		—
Provision for warranty	2.8		3.8		4.3		5.5
Utilization of reserve	(4.5)		(0.3)		(6.6)		(1.9)
Balance as of end of period	$	8.4	$	8.6	$	8.4	$	8.6