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Income Taxes
 3 Months Ended
Mar. 31, 2025
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
Three months ended March 31,
(in thousands)20252024
Income before income taxes$3,213 $13,968 
Income tax (benefit) provision(2,118)1,303 
Effective tax rate(65.9)%9.3 %

The difference between the (65.9)% effective tax rate and the U.S. federal statutory tax rate of 21.0% for the three months ended March 31, 2025, is primarily attributable to a discrete adjustment of unrecognized tax benefits related to prior period U.S. federal research and development tax credits.
The difference between the 9.3% effective tax rate and the U.S. federal statutory tax rate of 21.0% for the three months ended March 31, 2024, was primarily attributable to the tax impact of noncontrolling interest, stock-based compensation, and federal tax credits offset by state and local income taxes, nondeductible compensation and other discrete tax adjustments.