​

Outstanding

​

​

​

principal

​

Carrying value

​

​

September 30, 

​

September 30, 

​

December 31, 

​

2020

2020

2019

​

amounts in thousands

Margin Loan Facility

​

$

1,300,000

​

1,300,000

1,300,000

Exchangeable senior debentures

​

477,250

​

820,035

658,839

Senior notes

​

775,000

​

793,524

796,138

Senior credit facility

​

510,822

​

510,822

512,666

Wells Fargo note payable

​

6,608

​

6,608

7,066

Deferred financing costs

​

—

​

(8,302)

(8,491)

Total debt

​

$

3,069,680

​

3,422,687

3,266,218

Debt classified as current

​

​

​

(823,166)

(3,008)

Total long-term debt

​

​

​

​

$

2,599,521

3,263,210