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Assets - Intangible Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Intangible assets    
Gross Carrying Amount, Intangible assets $ 537,509 $ 508,969
Accumulated Amortization and Impairment, Intangible assets 487,193 485,082
Total Net Intangible Assets 50,316 23,887
Technology    
Intangible assets    
Gross Carrying Amount, Intangible assets 355,928 327,908
Accumulated Amortization and Impairment, Intangible assets 318,168 316,918
Total Net Intangible Assets 37,760 10,990
Customer relationship    
Intangible assets    
Gross Carrying Amount, Intangible assets 146,925 146,465
Accumulated Amortization and Impairment, Intangible assets 135,967 135,415
Total Net Intangible Assets 10,958 11,050
Trademarks and tradenames    
Intangible assets    
Gross Carrying Amount, Intangible assets 30,910 30,910
Accumulated Amortization and Impairment, Intangible assets 29,365 29,063
Total Net Intangible Assets 1,545 1,847
Other Intangible Assets    
Intangible assets    
Gross Carrying Amount, Intangible assets 3,746 3,686
Accumulated Amortization and Impairment, Intangible assets 3,693 $ 3,686
Total Net Intangible Assets $ 53