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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Schedule of Balances by Type of Long-Lived Assets The balances by type were as follows at December 31:
 20232022
(In thousands)CostAccumulated
Depreciation/
Amortization
CostAccumulated
Depreciation/
Amortization
Furniture and fixtures$4,244 $(2,463)$2,809 $(2,249)
Office equipment1,672 (982)1,012 (894)
Computer hardware12,556 (11,273)11,125 (10,607)
Purchased software40,266 (39,271)39,015 (38,358)
Costs of internal-use software13,785 (12,593)14,683 (11,332)
Leasehold improvements7,708 (4,586)5,171 (3,912)
Total$80,231 $(71,168)$73,815 $(67,352)