Fair Value Measurements - Fair Values of Financial Instruments Measured On Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Liabilities:
Contingent consideration	$ 0	$ 6,800
Fair Value, Recurring \| Fair Value
Assets:
Total assets measured at fair value	957,927	86,657
Liabilities:
Contingent consideration		6,837
Total liabilities measured at fair value		6,837
Fair Value, Recurring \| Fair Value \| Money market and other funds
Assets:
Cash equivalents	957,927	86,657
Fair Value, Recurring \| Carrying Value
Assets:
Total assets measured at fair value	957,927	86,657
Liabilities:
Contingent consideration		6,837
Total liabilities measured at fair value		6,837
Fair Value, Recurring \| Carrying Value \| Money market and other funds
Assets:
Cash equivalents	957,927	86,657
Fair Value, Recurring \| Level 1 \| Fair Value
Assets:
Total assets measured at fair value	957,927	86,657
Liabilities:
Contingent consideration		0
Total liabilities measured at fair value		0
Fair Value, Recurring \| Level 1 \| Fair Value \| Money market and other funds
Assets:
Cash equivalents	957,927	86,657
Fair Value, Recurring \| Level 2 \| Fair Value
Assets:
Total assets measured at fair value	0	0
Liabilities:
Contingent consideration		0
Total liabilities measured at fair value		0
Fair Value, Recurring \| Level 2 \| Fair Value \| Money market and other funds
Assets:
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Fair Value
Assets:
Total assets measured at fair value	0	0
Liabilities:
Contingent consideration		6,837
Total liabilities measured at fair value		6,837
Fair Value, Recurring \| Level 3 \| Fair Value \| Money market and other funds
Assets:
Cash equivalents	$ 0	$ 0