Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES - Narrative (Details)

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INCOME TAXES - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Income Taxes (Textual) [Abstract]          
Effective tax rate 24.40% 24.20% 24.10% 20.70%  
Effective income tax rate reconciliation, tax credit amount         $ 6,300,000
Unrecognized tax benefits $ 0   $ 0   0
Valuation allowance on deferred tax assets 0   0    
Federal [Member]          
Income Taxes (Textual) [Abstract]          
Tax credits 0   0    
State [Member]          
Income Taxes (Textual) [Abstract]          
NOL carryforwards 1,000,000.0   1,000,000.0   $ 1,000,000
Accrued Liabilities [Member]          
Income Taxes (Textual) [Abstract]          
Income taxes payable 7,800,000   7,800,000    
Other Receivables [Member]          
Income Taxes (Textual) [Abstract]          
Income taxes receivable $ 5,000,000.0   $ 5,000,000.0