Discontinued Operations and Dispositions - Key Components Of Cash Flows From Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on extinguishment of debt	$ 5,274	$ 0	$ 0
Amortization of financing costs and discounts	26,090	28,476	14,038
Deferred taxes	(21,447)	307	(7,514)
Discontinued Operations | J2 Global
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Capital expenditures	15,252,000	16,237,000	6,996,000
Depreciation and amortization	9,010,000	11,759,000	10,270,000
Loss on extinguishment of debt	8,750,000	37,969,000	0
Amortization of financing costs and discounts	0	1,171,000	1,428,000
Foreign currency remeasurement gain	0	31,537,000	0
Deferred taxes	$ 8,015,000	$ 5,534,000	$ (55,931,000)