Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Aug. 03, 2022	Sep. 30, 2023	Jul. 01, 2023
Liabilities assumed
Goodwill		$ 695.1	$ 695.1
NeoPhotonics
Business Acquisition
Total purchase price consideration	$ 934.4
Assets acquired
Cash and cash equivalents	92.9
Accounts receivable, net	66.8
Inventories	84.3
Prepayments and other current assets	24.2
Property, plant and equipment, net	106.1
Operating lease right-of-use assets, net	16.9
Other intangible assets, net	412.5
Deferred tax asset	5.4
Other non-current assets	1.9
Total assets	811.0
Liabilities assumed
Accounts payable	79.6
Accrued payroll and related expenses	11.1
Accrued expenses	3.8
Other current liabilities	10.6
Operating lease liabilities, current	2.8
Operating lease liabilities, non-current	13.2
Deferred tax liability	38.3
Other non-current liabilities	32.5
Total liabilities	191.9
Goodwill	315.3
NeoPhotonics | Customer relationships
Assets acquired
Other intangible assets, net	144.5
NeoPhotonics | Acquired developed technologies
Assets acquired
Other intangible assets, net	220.0
NeoPhotonics | In-process research and development
Assets acquired
Other intangible assets, net	$ 48.0