Discontinued Operations - Additional Information (Details) - Public Safety & Security - Disposal Group, Held-for-sale, Not Discontinued Operations $ in Millions	Jun. 11, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price, in cash	$ 69.0
Working capital adjustment	8.0
Working capital retained	$ 6.3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Balance Type:	na
Period Type:	duration