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WISCONSIN ECONOMIC DEVELOPMENT TAX CREDIT (Details) - Wisconsin Economic Development Tax Credit Agreement
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Mar. 31, 2015
USD ($)
employee
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Agreements        
Refundable tax credits available, contingent   $ 9.0    
Capital investment expenditures over specified period, requirement to earn the refundable tax credits   $ 26.3    
Full-time positions that must be created over a specified time period to earn the refundable tax credits | employee   758    
Period over which the capital investment expenditures must be incurred and the creation of full-time positions must be completed   7 years    
Refundable tax credits earned       $ 9.0
Refundable tax credit received       7.5
Refundable tax credit receivable       $ 1.5
Amortization of tax credits $ 0.6   $ 1.7