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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
NACCO INDUSTRIES, INC. AND SUBSIDIARIES
YEAR ENDED DECEMBER 31, 2020 AND 2019
  Additions  
DescriptionBalance at Beginning of PeriodCharged to
Costs and
Expenses		Charged to
Other Accounts
— Describe		Deductions
— Describe		Balance at
End of
Period (A)
(In thousands)
2020      
Reserves deducted from asset accounts:      
Deferred tax valuation allowances$12,296 $(747)$— — $11,549 
2019      
Reserves deducted from asset accounts:      
Deferred tax valuation allowances$14,219 $(1,923)$— $— $12,296 
(A)Balances which are not required to be presented and those which are immaterial have been omitted.