Acquisitions - Assets Acquired (Details) - USD ($) $ in Millions	Jun. 30, 2018	Mar. 15, 2018
AW business
Business Acquisition [Line Items]
Cash		$ 16.1
Accounts receivable		43.0
Inventory		33.5
Property and equipment		33.5
Other assets		7.6
Accounts payable		(10.9)
Other liabilities		(29.6)
Deferred revenue		(10.2)
Deferred tax liabilities		(23.7)
Net tangible assets acquired		$ 59.3
Trilithic, Inc
Business Acquisition [Line Items]
Cash	$ 0.2
Accounts receivable	3.2
Inventory	10.1
Property and equipment	1.2
Accounts payable	(1.7)
Other liabilities, net	(1.2)
Net tangible assets acquired	$ 11.8