Disposals - Additional Information (Details) - USD ($)		2 Months Ended	12 Months Ended
	Feb. 22, 2022	Feb. 22, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of discontinued operations			$ 0	$ 9,241,000	$ (1,860,000)
Asset impairment charges			$ 0	0	140,461,000
Brazil
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset impairment charges					3,400,000
Goodwill impairment loss					1,700,000
Impairment of intangible assets					1,000,000
Tripwire
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill impairment loss					131,200,000
Tripwire | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 350,000,000
Loss on disposal of discontinued operations				$ 9,200,000
Capital expenditure		$ 200,000			6,100,000
Share-based compensation expense, discontinued operations					2,200,000
Asset impairment charges		$ 0			131,178,000
Oil & Gas Cable Business | Discontinued Operations, Disposed of by Sale | Brazil
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, amount carrying value exceeds fair value					3,400,000
Asset impairment charges					3,400,000
Goodwill impairment loss					1,700,000
Impairment of intangible assets					1,000,000
Consideration					10,900,000
Grass Valley | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred consideration - seller's note						$ 175,000,000
Paid-in-kind interest						88,000,000
Deferred compensation - earnout payments						178,000,000
Fair value of debt instrument						$ 34,900,000
Proceeds from sale of seller's note					62,000,000
Gain on sale of seller's note					$ 27,000,000