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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Taxes  
Schedule of components of earnings before income taxes and noncontrolling interests

Components of earnings before income taxes and noncontrolling interests for the years ended December 31 are as follows (in thousands):

2024

2023

2022

United States income

$

1,992,814

$

3,198,048

$

4,996,762

Foreign income (loss)

(9,933)

20,895

24,307

Total income before income taxes

$

1,982,881

$

3,218,943

$

5,021,069

Schedule of Components of Income Tax Expense (Benefit)

The company files a consolidated federal income tax return. The provision for income tax expense for the years ended December 31 is as follows (in thousands):

2024

2023

2022

Current income tax expense

Federal

$

409,586

$

600,499

$

946,016

State

57,942

91,965

152,758

Foreign

7,980

3,482

8,605

Total current

475,508

695,946

1,107,379

Deferred income tax expense (benefit)

Federal

(26,311)

38,172

22,168

State

(12,476)

15,355

13,333

Foreign

(3,796)

2,138

(1,303)

Total deferred

(42,583)

55,665

34,198

Total income tax expense

$

432,925

$

751,611

$

1,141,577

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the statutory rates to the actual effective tax rates for the years ended December 31 are as follows:

2024

2023

2022

Statutory federal tax rate

21.0

%

21.0

%

21.0

%

State income taxes, net of federal benefit

1.8

2.6

2.6

Federal research & development credits

(0.9)

(0.2)

(0.6)

Other permanent differences

(0.1)

(0.1)

(0.3)

Effective tax rate

21.8

%

23.3

%

22.7

%

Schedule of Deferred Tax Assets and Liabilities

Significant components of the company’s deferred tax assets and liabilities at December 31 are as follows (in thousands):

2024

2023

Deferred tax assets

Accrued expenses and allowances

$

41,031

$

41,894

Inventories

6,892

10,685

Net operating loss carryforwards

24,381

7,663

Amortizable assets

39,657

5,798

Other

5,916

9,149

117,877

75,189

Less: valuation allowance

(1,150)

(816)

Total net deferred tax assets

116,727

74,373

Deferred tax liabilities

Property, plant and equipment

(1,014,515)

(1,013,045)

Other

(4,398)

(6,096)

Total deferred tax liabilities

(1,018,913)

(1,019,141)

Net deferred tax liability

$

(902,186)

$

(944,768)

Schedule of Unrecognized Tax Benefits Roll Forward

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):

2024

2023

2022

Balance at January 1

$

31,258

$

28,646

$

20,466

Increases related to current year tax positions

5,115

1,500

9,600

Increases related to prior year tax positions

263

1,798

364

Decreases related to prior year tax positions

(6,949)

(686)

(1,784)

Balance at December 31

$

29,687

$

31,258

$

28,646