Revenue - Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total accounts receivables with customers	$ 414.6	$ 175.8
Infrastructure
Segment Reporting Information [Line Items]
Total accounts receivables with customers	405.4	168.5
Spectrum
Segment Reporting Information [Line Items]
Total accounts receivables with customers	9.0	7.3
Life Sciences
Segment Reporting Information [Line Items]
Total accounts receivables with customers	$ 0.2	$ 0.0