Goodwill and Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	May 02, 2022
Goodwill [Line Items]
Goodwill	$ 723,500,000		$ 723,500,000
Impairment losses recognized in goodwill	0	$ 0
Intangible assets subject to amortization, gross carrying amount	977,600,000		977,600,000
Amortization of finite-lived intangible assets	28,700,000	30,100,000
Impairment of intangible assets, finite-lived	0	$ 0
IT Services and Hardware [Member] | Operating Segments [Member]
Goodwill [Line Items]
Goodwill	177,600,000		177,600,000
Network [Member] | Operating Segments [Member]
Goodwill [Line Items]
Goodwill	$ 545,900,000		$ 545,900,000
Agile IWG Holdings, LLC [Member]
Goodwill [Line Items]
Goodwill				$ 39,400,000