As of

(in thousands)

June 30, 2021

December 31, 2020

Credit Facility:

Revolving credit agreement

$

20,800

$

270,400

Convertible Debt:

0.75% convertible notes, unsecured, due 2049

460,136

452,228

1.375% Senior Notes, due 2026

711,300

732,840

Other obligations

808

850

Total debt obligations

1,193,044

1,456,318

Unamortized debt issuance costs

(15,857

)

(17,932

)

Carrying value of debt

1,177,187

1,438,386

Short-term debt obligations and current maturities of long-term debt obligations

(746

)

(797

)

Long-term debt obligations

$

1,176,441

$

1,437,589