Reverse Recapitalization - Schedule of Common Stock Issued and Outstanding After Merger (Details) - shares shares in Thousands	Sep. 24, 2025	Sep. 23, 2025	Jun. 30, 2026	Dec. 31, 2025
Business Combination [Line Items]
Common stock, outstanding (in shares)	174,957		194,173	175,440
Reverse recapitalization (in shares)	11,743
Legacy Kodiak common stock
Business Combination [Line Items]
Shares converted, recapitalization (in shares)	161,754
NRA Shares
Business Combination [Line Items]
Shares converted, recapitalization (in shares)	368
Legacy Kodiak Advisor Shares
Business Combination [Line Items]
Shares converted, recapitalization (in shares)	1,092
Common Shareholders
Business Combination [Line Items]
Shares issued for acquisition (in shares)	5,493
AACT Sponsors
Business Combination [Line Items]
Shares issued for acquisition (in shares)	6,250
AACT
Business Combination [Line Items]
Common stock, outstanding (in shares)		49,360
Shares repurchased during period (in shares)		(43,867)