Three Months Ended June 30,

Six Months Ended June 30,

2020

2021

2020

2021

Debt issuance costs capitalized

$

-

$

2,797

$

-

$

2,846

Write off of debt issuance costs due to amendments

-

147

Write off of debt issuance costs due to new credit facility

-

583

-

583

Interest expense related to amortization of debt issuance costs

251

217

502

462

Credit facility interest expense⁽¹⁾

1,171

893

2,606

1,836

Weighted average interest rate under credit facility⁽¹⁾

3.86

%

3.83

%

4.37

%

3.83

%