XML 87 R72.htm IDEA: XBRL DOCUMENT v3.20.2
Current and Long-Term Debt - Convertible Notes and Revolving Credit (Details)
$ / shares in Units, atm in Millions
1 Months Ended 3 Months Ended 6 Months Ended 36 Months Ended
Jun. 29, 2020
USD ($)
May 29, 2020
Jul. 01, 2016
trading_day
$ / shares
Jun. 30, 2020
USD ($)
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
atm
Jun. 30, 2019
USD ($)
Sep. 19, 2024
Jun. 28, 2020
USD ($)
Dec. 31, 2019
USD ($)
Nov. 19, 2013
USD ($)
Long-Term Debt                                  
Write-off of deferred finance cost $ 1,200,000                                
Letters of credit outstanding, amount       $ 8,900,000           $ 8,900,000   $ 8,900,000          
Loss on extinguishment of convertible notes                   3,018,000 $ 0 $ 3,018,000 $ 0        
Convertible notes, number of shares (in shares) | atm                       2.2          
Revolving Credit Facility                                  
Long-Term Debt                                  
Maximum borrowing capacity $ 600,000,000     600,000,000           600,000,000   $ 600,000,000     $ 750,000,000    
Letters of credit outstanding, amount       $ 0           $ 0   $ 0          
Convertible Senior Notes 1.00 percent due December 2020                                  
Long-Term Debt                                  
Interest rate, as a percentage       1.00%           1.00%   1.00%       1.00% 1.00%
Aggregate principle amount       $ 115,600,000           $ 115,600,000   $ 115,600,000       $ 287,500,000 $ 287,500,000
Convertible debt, fair value                                 $ 215,800,000
Effective interest rate percentage       5.26%           5.26%   5.26%          
Repurchased face amount       $ 171,900,000           $ 171,900,000   $ 171,900,000          
Loss on extinguishment of convertible notes       $ 3,000,000.0                          
Conversion price (in dollars per share) | $ / shares     $ 52.35                            
Conversion ratio per $1 principal amount                       0.0191022          
Threshold percentage of share price that triggers conversion     135.00%                            
Debt conversion, threshold trading days | trading_day     20                            
Debt conversion, threshold consecutive trading days | trading_day     30                            
Number of trading days     10 days                            
Number of consecutive trading days     5 days                            
Percentage of closing price     98.00%                            
Change in control conversion price, as percentage of par plus interest     100.00%                            
Minimum | Revolving Credit Facility                                  
Long-Term Debt                                  
Total net leverage ratio, debt covenant   4.00                              
Minimum | Letter of Credit                                  
Long-Term Debt                                  
Total net leverage ratio, debt covenant   5.00                              
Minimum | Credit Agreement                                  
Long-Term Debt                                  
Interest coverage ratio 300.00%                                
Maximum | Revolving Credit Facility                                  
Long-Term Debt                                  
Total net leverage ratio, debt covenant 4.50                                
Maximum | Credit Agreement                                  
Long-Term Debt                                  
Total net leverage ratio, debt covenant                   4.25              
Total net leverage ratio related to restricted payments 3.75                                
Maximum | Credit Agreement | Forecast                                  
Long-Term Debt                                  
Total net leverage ratio, debt covenant         5.00 5.25 5.50 5.25 4.25         4.50