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Long-term Debt (Tables)
9 Months Ended
Sep. 30, 2021
Long-term Debt  
Schedule of long-term debt

Long-term debt consisted of the following as of September 30, 2021, and December 31, 2020 (in thousands):

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September 30, 2021

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December 31, 2020

Current portion of long-term debt

$

363,379

​

$

406,005

Current portion of unamortized debt issue cost, net

​

(3,491)

​

​

(3,847)

Current portion of long-term debt, net of debt issue costs

$

359,888

​

$

402,158

​

​

​

​

​

​

Long-term debt, net of current maturities

$

2,633,194

​

$

2,829,997

Long-term portion of unamortized debt issue cost, net

​

(28,131)

​

​

(28,459)

Long-term debt, net of current maturities and debt issue costs

$

2,605,063

​

$

2,801,538

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​

​

​

​

​

Total long-term debt (including current portion)

$

2,996,573

​

$

3,236,002

Total unamortized debt issue cost, net

​

(31,622)

​

​

(32,306)

Total long-term debt, net of debt issue costs

$

2,964,951

​

$

3,203,696