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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of components of income tax (benefit) expense

​

​

​

​

​

​

​

​

​

​

​

​

    

Current

    

Deferred

    

Total

Year ended December 31, 2020

 

​

  

 

​

  

 

​

  

U.S. Federal

​

$

—

​

$

—

​

$

—

State and local

​

 

589

​

$

13

​

$

602

Foreign

​

 

1,370

​

 

4

​

 

1,374

​

​

$

1,959

​

$

17

​

$

1,976

Year ended December 31, 2019

​

 

  

​

 

  

​

 

  

U.S. Federal

​

$

—

​

$

—

​

$

—

State and local

​

 

716

​

$

104

​

$

820

Foreign

​

 

1,081

​

 

(33)

​

 

1,048

​

​

$

1,797

​

$

71

​

$

1,868

Year ended December 31, 2018

​

 

  

​

 

  

​

 

  

U.S. Federal

​

$

(12)

​

$

(12,664)

​

$

(12,676)

State and local

​

 

183

​

$

(471)

​

$

(288)

Foreign

​

 

731

​

 

—

​

 

731

​

​

$

902

​

$

(13,135)

​

$

(12,233)

Schedule of effective income tax reconciliation

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​

​

​

    

2020

    

2019

    

2018

 

Statutory amount

​

$

4,662

​

$

(733)

​

$

(22,398)

​

Valuation allowance on foreign tax credits

​

 

1,344

​

 

1,081

​

 

593

​

State income tax, net of federal benefit

​

 

792

​

 

991

​

 

(1,922)

​

Permanent differences, other

​

 

558

​

 

461

​

 

1,550

​

Permanent differences, stock compensation

​

 

328

​

 

311

​

 

(24)

​

Valuation allowance, other

​

 

(5,795)

​

 

(166)

​

 

10,384

​

Other

​

 

87

​

 

(77)

​

 

(416)

​

Consolidated income tax provision

​

$

1,976

​

$

1,868

​

$

(12,233)

​

Consolidated effective tax rate

​

 

8.9

%  

 

(53.5)

%  

 

11.5

%

Schedule of deferred tax assets and liabilities

​

​

​

​

​

​

​

​

​

​

Long Term

​

​

As of December 31, 

​

    

2020

    

2019

Assets related to:

 

​

  

 

​

  

Accrued liabilities

​

$

1,058

​

$

1,030

Intangible assets

​

 

2,818

​

 

3,020

Net operating loss carryforward

​

 

10,259

​

 

15,246

Stock-based compensation

​

 

377

​

 

586

Foreign tax credits

​

 

3,782

​

 

2,570

Goodwill

​

 

6,199

​

 

7,232

Leases

​

​

10,235

​

​

9,038

Other

​

 

1,518

​

 

1,347

Total gross deferred tax assets

​

 

36,246

​

 

40,069

Less valuation allowance

​

​

(12,493)

​

​

(16,960)

Total net deferred tax assets

​

​

23,753

​

​

23,109

Liabilities related to:

​

 

  

​

 

  

Depreciation and amortization

​

 

(23,308)

​

 

(22,634)

Other

​

 

(582)

​

 

(595)

Total deferred tax liabilities

​

 

(23,890)

​

 

(23,229)

Net deferred tax liabilities

​

$

(137)

​

$

(120)

Schedule of Unrecognized tax benefits

​

​

​

​

​

​

​

​

​

    

2020

    

2019

Balances at beginning of the year

​

$

1,614

​

$

1,614

Additions based on tax position related to current year

​

 

—

​

 

—

Additions based on tax positions related to prior years

​

 

—

​

 

—

Reductions based on tax positions related to current year

​

 

—

​

 

—

Reductions based on tax positions related to prior years

​

 

—

​

 

—

Settlements with tax authorities

​

 

—

​

 

—

Lapse of statute of limitations

​

 

—

​

 

—

Balance at the end of year

​

$

1,614

​

$

1,614