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Long-Term Obligations and Commitments (Tables)
 12 Months Ended
Dec. 31, 2021
Long-Term Obligations and Commitments [Abstract]  
Long-Term Obligations

The carrying value of our long-term obligations was as follows (in thousands):

 
December 31,
  
   
2021
    
2020
  
         
(as revised*)
  
0.125 percent convertible senior notes
  
$
542,314
    
$
540,136
  
1 percent convertible senior notes (1)
    
—
      
308,809
  
0 percent convertible senior notes
    
619,119
      
—
  
Long-term mortgage debt
    
59,713
      
59,984
  
Leases and other obligations
    
29,904
      
30,710
  
Total
  
$
1,251,050
    
$
939,639
  
Less: current portion (1)
    
(3,526
)
    
(316,110
)
Total Long-Term Obligations
  
$
1,247,524
    
$
623,529
  
________________
(1)
We classified the carrying value of our 1% Notes as a current liability on our consolidated balance sheet at December 31, 2020 because it matured in November 2021.
Convertible Notes [Abstract]  
Maturity Schedules for Annual Debt and Other Obligations

Annual debt and other obligation maturities, including fixed and determinable interest, at December 31, 2021 are as follows (in thousands):

2022
  
$
3,498
  
2023
    
4,180
  
2024
    
4,180
  
2025
    
1,184,820
  
2026
    
3,494
  
Thereafter
    
57,439
  
Subtotal
  
$
1,257,611
  
Less: current portion
    
(3,526
)
Less: fixed and determinable interest
    
(15,498
)
Less: debt issuance costs
    
(20,302
)
Plus: lease liabilities
    
22,058
  
Plus: other liabilities
    
7,181
  
Total long-term debt
  
$
1,247,524
  
Amounts Related to Operating Leases

Amounts related to our operating leases were as follows (dollar amounts in millions):

 
At December 31, 2021
  
Right-of-use operating lease assets (1)
  
$
18.0
  
Operating lease liabilities (2)
  
$
22.1
  
Weighted average remaining lease term
  
6.6 years
  
Weighted average discount rate
    
6.0
%
________________
(1)
Included in deposits and other assets on our consolidated balance sheet.

(2)
Current portion of $2.6 million was included in current portion of long-term obligations on our consolidated balance sheet, with the difference included in long-term obligations.
Future Payments for Operating Lease Liabilities

As of December 31, 2021, the future payments for our operating lease liabilities are as follows (in thousands):

 
Operating Leases
  
Year ending December 31,
   $    
2022
    
4,075
  
2023
    
4,314
  
2024
    
4,223
  
2025
    
4,062
  
2026
    
3,778
  
Thereafter
    
7,035
  
Total minimum lease payments
    
27,487
  
Less:
        
Imputed interest
    
(5,429
)
Total operating lease liabilities
  
$
22,058
  
0% Notes [Member]  
Convertible Notes [Abstract]  
Convertible Senior Notes

At December 31, 2021, we had the following 0% Notes outstanding (amounts in millions except interest rate and price per share data):

   
0% Notes
  
Outstanding principal balance
  
$
632.5
  
Unamortized debt issuance costs
  
$
13.4
  
Maturity date
  
April 2026
  
Interest rate
  
0 percent
  
Effective interest rate
  
0.5 percent
  
Conversion price per share
  
$
57.84
  
Effective conversion price per share with call spread
  
$
76.39
  
Total shares of common stock subject to conversion
    
10.9
  
0.125% Notes [Member]  
Convertible Notes [Abstract]  
Convertible Senior Notes

At December 31, 2021, we had the following 0.125% Notes outstanding with interest payable semi-annually (amounts in millions except interest rate and price per share data):

   
0.125% Notes
  
Outstanding principal balance
  
$
548.8
  
Unamortized debt issuance costs
  
$
6.5
  
Maturity date
  
December 2024
  
Interest rate
  
0.125 percent
  
Effective interest rate
  
0.5 percent
  
Conversion price per share
  
$
83.28
  
Effective conversion price per share with call spread
  
$
123.38
  
Total shares of common stock subject to conversion
    
6.6