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Summary of Significant Accounting Policies - Comprehensive Income (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Accumulated other comprehensive loss consists of foreign currency translation adjustments, net of tax $ (54,332,000) $ (67,808,000) $ (36,550,000)
Net unrealized losses on available-for-sale investments, net of tax 2,107,000 (3,698,000) (7,515,000)
Losses on currency swaps, net of gains on long-term intercompany loans 1,271,000 1,271,000 1,271,000
Net realized gains reclassified into current operations 156,000 (8,000) (1,954,000)
Accumulated Other Comprehensive Loss [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Net realized gains reclassified into current operations $ 156,000 $ (8,000) $ (1,954,000)