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Provision For Income Taxes (Tables)
12 Months Ended
Jan. 03, 2025
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
Our income before income taxes is derived solely from within the U.S. Our provision for income taxes was as follows (in thousands):
 
Year Ended December 31,
 
202420232022
Current:
Federal$201,890 $167,954 $100,525 
State17,941 15,011 11,903 
Total current tax expense$219,831 $182,965 $112,428 
Deferred:
Federal$(52,433)$(123,486)$(54,223)
State(7,025)(9,723)(6,135)
Total deferred tax expense(59,458)(133,209)(60,358)
Provision for income taxes$160,373 $49,756 $52,070 
Schedule of Reconciliation of Income Taxes At The Statutory Federal Income Tax Rate to Net Income Taxes
The reconciliation of the U.S. federal income tax provision at the statutory federal income tax rate of 21% for each of the years ended December 31, 2024, 2023 and 2022, respectively, to our provision for income taxes was as follows (in thousands):
 
Year Ended December 31,
 
202420232022
U.S. federal income tax provision at statutory rate$143,144 $54,080 $49,213 
State tax expense12,240 (1,487)(2,632)
Change in valuation allowance(3,617)5,770 7,162 
Research credits(10,997)(23,714)(14,130)
Stock-based compensation665 1,066 (2,864)
Non-deductible executive compensation7,094 7,019 4,549 
Branded prescription drug fee4,633 4,968 3,855 
Non-deductible warrant purchase— — 6,300 
Other7,211 2,054 617 
Provision for income taxes$160,373 $49,756 $52,070 
Schedule of Deferred Assets and Liabilities
Our deferred tax assets and liabilities were as follows (in thousands):
 
December 31,
 
20242023
Deferred tax assets:
Net operating loss and capital loss carryforwards$39,877 $29,512 
Tax credit carryforwards39,572 39,640 
Depreciation and amortization349,058 313,679 
Stock-based compensation17,791 24,592 
Lease liabilities49,137 49,971 
Accruals and reserves not currently deductible40,858 30,068 
Other assets9,049 10,730 
Total deferred tax assets545,342 498,192 
Valuation allowance(86,029)(83,001)
Net deferred tax assets459,313 415,191 
Deferred tax liabilities:
Lease right-of-use assets(39,286)(54,046)
Net deferred taxes$420,027 $361,145 
Schedule of Unrecognized Tax Benefits
The following table summarizes the activity related to our unrecognized tax benefits (in thousands):
 
Year Ended December 31,
 
202420232022
Beginning balance$115,766 $87,706 $83,583 
Change relating to prior year provision(1,994)631 715 
Change relating to current year provision13,796 32,137 4,129 
Reductions based on the lapse of the applicable statutes of limitations(68)(4,708)(721)
Ending balance$127,500 $115,766 $87,706