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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Taxes  
Schedule of components of provision (benefit) for income taxes

Years ended December 31, 

    

2020

    

2019

    

2018

(in thousands)

  

  

  

Current provision (benefit):

  

  

  

Federal

$

(74,841)

$

(3,548)

$

13,708

State

 

2,200

 

(3,185)

 

3,932

Foreign

 

1,247

 

2,968

 

6,843

Deferred provision (benefit):

 

 

  

 

  

Federal

 

(16,376)

 

(26,493)

 

23,203

State

 

(9,469)

 

4,268

 

(1,808)

Total income tax (benefit) provision

$

(97,239)

$

(25,990)

$

45,878

Schedule of reconciliation between the federal statutory rate and effective tax rate

Years ended December 31, 

    

2020

    

2019

    

2018

 

Federal statutory rate

21.0

%  

21.0

%  

21.0

%

State income taxes, net of federal benefit

1.5

(0.3)

2.6

 

Tax credits

 

0.1

 

0.3

 

(0.1)

Non-deductible expenses

 

(0.1)

 

(1.9)

 

1.8

Adjustments related to CARES Act

 

8.5

 

 

Adjustments related to the Act

 

 

 

(2.3)

Adjustments related to vesting of restricted stock

 

(0.8)

 

(0.4)

 

(0.8)

Other

 

1.2

 

4.3

 

(1.5)

Effective tax rate

 

31.4

%  

23.0

%  

20.7

%

Schedule of deferred tax assets and liabilities

December 31, 

    

2020

    

2019

(in thousands)

  

  

Deferred tax assets:

 

  

 

  

Self-insurance

$

4,773

$

5,729

Pension

 

8,105

 

9,617

State net operating loss carryforwards

 

5,853

 

1,445

Bad debt

 

1,302

 

1,392

Stock-based compensation

 

2,291

 

3,358

Inventory reserve

3,226

2,478

Impairment reserve

338

2,802

Foreign tax credit carryforwards

 

 

3,086

Federal net operating loss carryforwards

19,664

Basis differences in consolidated limited liability company

486

5,778

All others

 

1,126

 

2,191

Gross deferred tax assets

 

27,500

 

57,540

Deferred tax liabilities:

 

 

Depreciation

 

(33,486)

 

(87,647)

Goodwill amortization

 

(6,893)

 

(6,763)

Basis differences in joint ventures

 

(448)

 

(444)

All others

 

(5)

 

(5)

Gross deferred tax liabilities

 

(40,832)

 

(94,859)

Net deferred tax liabilities

$

(13,332)

$

(37,319)

Schedule of reconciliation of unrecognized tax benefits

    

2020

    

2019

Balance at January 1

$

2,215,000

$

2,215,000

Additions for tax positions of prior years

 

 

Reductions for tax positions of prior years

 

$

(2,215,000)

 

Balance at December 31

$

2,215,000