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Financial Commitments (Narrative) (Details)
1 Months Ended 6 Months Ended
May 02, 2023
Aug. 18, 2020
USD ($)
Oct. 31, 2022
Jun. 30, 2023
USD ($)
Apr. 01, 2023
Dec. 31, 2022
USD ($)
Sep. 30, 2022
Jan. 01, 2022
Apr. 20, 2017
USD ($)
Debt Instrument [Line Items]                  
Current maturities of long-term debt       $ 20,634,000   $ 70,285,000      
Term Loan B                  
Debt Instrument [Line Items]                  
Current maturities of long-term debt           44,000,000      
BMO Harris Bank                  
Debt Instrument [Line Items]                  
Applicable margin on overdue amounts (as a percent)   2.00%              
BMO Harris Bank | Unsecured Debt                  
Debt Instrument [Line Items]                  
Fixed charge coverage ratio (maximum)   2.00              
2020 Credit Agreement | BMO Harris Bank | Federal Funds Rate                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   0.50% 0.50%            
2020 Credit Agreement | BMO Harris Bank | Secured Overnight Financing Rate (SOFR)                  
Debt Instrument [Line Items]                  
Basis point spread, 1 month interest period 0.11448%                
Basis point spread, 3 month interest period 0.26161%                
Basis point spread, 6 month interest period 0.42826%                
Basis spread on variable rate   1.00% 1.00%            
Debt instrument, basis spread on variable rate adjustment     0.10%            
2020 Credit Agreement | BMO Harris Bank | Line of Credit                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity   $ 425,000,000              
Periodic payment principal percentage   0.25%              
Term Loan B | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Minimum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   4.50%              
Term Loan B | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Maximum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   4.75%              
Term Loan B | BMO Harris Bank | Base Rate | Minimum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   3.50%              
Term Loan B | BMO Harris Bank | Base Rate | Maximum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   3.75%              
First Lien | BMO Harris Bank                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)   1.35              
2017 Senior Notes | Senior Notes | Private Placement                  
Debt Instrument [Line Items]                  
Face amount                 $ 500,000,000
Interest rate                 6.875%
Redemption price, change of control triggering event (as a percent)       101.00%          
Revolving Credit Facility                  
Debt Instrument [Line Items]                  
Unamortized debt issuance costs       $ 1,800,000   $ 1,600,000      
Revolving Credit Facility | BMO Harris Bank                  
Debt Instrument [Line Items]                  
Weighted-average annual interest rate on borrowings       11.78%          
Remaining borrowing capacity       $ 150,000,000          
Revolving Credit Facility | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Minimum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   4.25%              
Revolving Credit Facility | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Maximum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   4.75%              
Revolving Credit Facility | BMO Harris Bank | Base Rate | Minimum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   3.25%              
Revolving Credit Facility | BMO Harris Bank | Base Rate | Maximum                  
Debt Instrument [Line Items]                  
Basis spread on variable rate   3.75%              
Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)   2.75 2.75   2.25 3.50 2.25 2.25  
Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio | Fiscal Quarter March 31, 2023                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)       3.75          
Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio | Fiscal Quarter June 30, 2023                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)       3.00          
Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio | Fiscal Quarter September 30, 2023                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)       2.50          
Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio | Fiscal Quarter December 31, 2023                  
Debt Instrument [Line Items]                  
Net leverage ratio (maximum)       2.25          
Revolving Credit Facility | 2020 Credit Agreement | BMO Harris Bank                  
Debt Instrument [Line Items]                  
Increase in line of credit   $ 173,500,000              
Accordion feature, percentage of LTM EBITDA   50.00%              
Revolving Credit Facility | 2020 Credit Agreement | BMO Harris Bank | Line of Credit                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity   $ 175,000,000              
Letters of Credit | 2020 Credit Agreement | BMO Harris Bank | Line of Credit                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity   75,000,000              
Bridge Loan | 2020 Credit Agreement | BMO Harris Bank | Line of Credit                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity   $ 10,000,000              
Secured Debt | BMO Harris Bank | Unsecured Debt | Junior Lien                  
Debt Instrument [Line Items]                  
Total net leverage ratio (maximum)   3.50