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Debt and Contingent Obligations - Schedule of Fixed Charge Coverage Ratios and Leverage Ratios (Details) - Second Amendment [Member] - Secured Debt - Xcel Term Loan
Dec. 31, 2019
September 30, 2020  
Debt Instrument [Line Items]  
Fixed Charge Coverage Ratio 1.00
Maximum Leverage Ratio 3.50
December 31, 2020, March 31, 2021, June 30, 2021, September 30, 2021, December 31, 2021 and thereafter  
Debt Instrument [Line Items]  
Fixed Charge Coverage Ratio 1.10
December 31, 2018  
Debt Instrument [Line Items]  
Maximum Leverage Ratio 2.90
June 30, 2020  
Debt Instrument [Line Items]  
Maximum Leverage Ratio 4.25
December 31, 2020  
Debt Instrument [Line Items]  
Maximum Leverage Ratio 2.75
March 31, 2021, June 30, 2021 and September 30, 2021  
Debt Instrument [Line Items]  
Maximum Leverage Ratio 1.70
December 31, 2021 and each Fiscal Quarter end thereafter  
Debt Instrument [Line Items]  
Maximum Leverage Ratio 1.50