Divestitures and Discontinued Operations - Schedule of Assets and Liabilities Discontinued Operations (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current assets of discontinued operations:
Cash and cash equivalents	$ 0	$ 3,611	$ 2,168	$ 1,992
Total current assets	0	22,294
Non-current assets of discontinued operations:
Total non-current assets of discontinued operations	0	54,736
Current liabilities of discontinued operations:
Total current liabilities of discontinued operations	0	24,221
Total non-current liabilities of discontinued operations	0	2,054
Discontinued Operations, Disposed of by Sale | Messaging and NetworkX Businesses
Current assets of discontinued operations:
Cash and cash equivalents	0	3,611
Accounts receivable, net	0	15,339
Prepaid & other current assets	0	3,344
Total current assets	0	22,294
Non-current assets of discontinued operations:
Property and equipment, net	0	141
Operating lease right-of-use assets	0	757
Goodwill	0	28,630
Intangible assets, net	0	25,180
Other assets, non-current	0	28
Total non-current assets of discontinued operations	0	54,736
Total assets of discontinued operations	0	77,030
Current liabilities of discontinued operations:
Accounts payable	0	4,509
Accrued expenses	0	7,802
Deferred revenues, current	0	11,910
Total current liabilities of discontinued operations	0	24,221
Deferred revenues, non-current	0	324
Leases, non-current	0	493
Other non-current liabilities	0	1,237
Total non-current liabilities of discontinued operations	0	2,054
Total liabilities of discontinued operations	$ 0	$ 26,275