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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Expense (Benefit)

Income tax expense (benefit) is as follows:

 

     Year ended December 31,  
     2016      2017  

Current:

     

Federal

   $ 789,150      $ (2,466,482

State

     264,707        289,563  
  

 

 

    

 

 

 
     1,053,857        (2,176,919

Deferred:

     

Federal

     2,172,740        (47,531,436

State

     5,071,205        1,480,065  
  

 

 

    

 

 

 
     7,243,945        (46,051,371
  

 

 

    

 

 

 
   $ 8,297,802      $ (48,228,290
  

 

 

    

 

 

 
Schedule of Income Tax Expense (Benefit) , Federal Statutory Rate

Income tax expense (benefit) differs from the amounts that would result from applying the federal statutory rate of 35%, effective for most of the year ended December 31, 2017, to the Company’s income before taxes as follows:

 

     Year ended December 31,  
     2016      2017  

Expected tax expense

   $ 19,525,175      $ 13,616,008  

State income taxes, net of federal benefit

     552,499        1,150,258  

Gain on merger

     (15,941,611      (3,518,814

Tax rate adjustments

     2,915,844        (59,717,125

Change in valuation allowance

     (65,900      52,833  

Non-deductible items

     1,147,565        (110,953

Other

     164,230        299,503  
  

 

 

    

 

 

 
   $ 8,297,802      $ (48,228,290
  

 

 

    

 

 

 
Schedule of Components of Deferred Tax Assets and Liabilities

Temporary differences that give rise to the components of deferred tax assets and liabilities are as follows:

 

     December 31,  
     2016      2017  

Deferred tax assets:

     

Allowance for doubtful accounts

   $ 625,317      $ 427,484  

Goodwill

     8,782,364        —    

Other assets

     (42,787      (2,047,104

Accrued expenses

     1,497,317        355,361  

Other long-term liabilities

     6,353,590        2,918,611  

Stock-based compensation

     248,046        107,715  

Net operating losses

     3,750,420        5,506,040  
  

 

 

    

 

 

 

Subtotal

     21,214,267        7,268,107  

Valuation allowance

     (528,179      (328,170
  

 

 

    

 

 

 

Total

     20,686,088        6,939,937  
  

 

 

    

 

 

 

Deferred tax liabilities:

     

Prepaid expenses

     (874,495      (96,085

Property and equipment

     (6,110,234      (2,743,550

Intangibles

     (174,240,627      (119,383,233
  

 

 

    

 

 

 

Total

     (181,225,356      (122,222,868
  

 

 

    

 

 

 

Net deferred tax liabilities

   $ (160,539,268    $ (115,282,931