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Indebtedness, net (Narrative) (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Feb. 02, 2022
USD ($)
extension
May 31, 2021
USD ($)
day
$ / shares
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]          
Amortization of principal     $ 523 $ 1,300  
Indebtedness, gross     1,237,500   $ 1,180,750
Net proceeds from long-term debt     70,500 $ 0  
Convertible senior notes | Convertible Senior Notes          
Debt Instrument [Line Items]          
Indebtedness, gross     $ 86,250   86,250
Face amount of debt   $ 86,250      
Interest rate   4.50% 4.50%    
Net proceeds from long-term debt   $ 82,800      
Coupon interest expense     $ 970    
Carrying amount of the equity component   6,300      
Initial discount   $ 9,300      
Discount amortization     $ 132    
Conversion rate   0.1577909      
Conversion price (in dollars per share) | $ / shares   $ 6.34      
Threshold percentage of stock price trigger   130.00%      
Threshold trading days | day   20      
Threshold consecutive trading days | day   30      
Redemption price, percentage   100.00%      
Convertible senior notes | Convertible Senior Notes | Discount rate          
Debt Instrument [Line Items]          
Debt instrument, measurement input   0.071      
Mortgage Loan 9 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate          
Debt Instrument [Line Items]          
Basis spread on variable rate     2.86%    
Mortgage Loan 9 | Mortgages          
Debt Instrument [Line Items]          
Indebtedness, gross     $ 70,500   $ 0
Debt term 2 years        
Number of extension options | extension 3        
Term of extension options (in years) 1 year        
Payments of debt restructuring costs $ 637        
Mortgage Loan 9 | Mortgages | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate          
Debt Instrument [Line Items]          
Basis spread on variable rate     0.0286%