Marketable Investments - Unrealized Losses on Debt Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Less than 12 Months - Market Value	$ 9,985	$ 803
Less than 12 Months - Unrealized Losses	10	4
12 Months or Greater - Market Value	0	997
12 Months or Greater - Unrealized Losses	0	2
Corporate obligations [Member]
Debt Securities, Available-for-Sale [Line Items]
Less than 12 Months - Market Value	7,057	803
Less than 12 Months - Unrealized Losses	6	4
12 Months or Greater - Market Value	0	997
12 Months or Greater - Unrealized Losses	0	$ 2
Federal agency obligations [Member]
Debt Securities, Available-for-Sale [Line Items]
Less than 12 Months - Market Value	2,928
Less than 12 Months - Unrealized Losses	4
12 Months or Greater - Market Value	0
12 Months or Greater - Unrealized Losses	$ 0