v3.24.0.1
Convertible Senior Notes (Tables) - 3.75% Convertible Senior Notes
12 Months Ended
Dec. 31, 2023
Debt Instrument [Line Items]  
Schedule of net proceeds from the Convertible Senior Notes

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​

​

​

Principal amount

$

212,463

Less: initial purchasers' discount

​

(6,374)

Less: cost of related capped calls

​

(16,253)

Less: other issuance costs

​

(617)

Net proceeds

$

189,219

Schedule of Convertible Senior Notes

The 3.75% Convertible Senior Notes consisted of the following (in thousands):

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​

​

​

​

​

​

​

December 31,

​

December 31,

​

2023

​

2022

Principal amounts:

​

​

​

​

​

Principal

$

197,278

​

$

197,278

Unamortized debt issuance costs (1)

​

(2,014)

​

​

(3,359)

Net carrying amount

$

195,264

​

$

193,919

1)Included in the consolidated balance sheets within the 3.75% Convertible Senior Notes, net and amortized over the remaining life of the notes using the effective interest rate method.

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Schedule of debt

The following table summarizes the total interest expense and effective interest rate related to the 3.75% Convertible Senior Notes (in thousands, except for effective interest rate):

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​

​

​

​

​

​

​

​

​

December 31,

​

​

December 31,

​

    

2023

    

​

2022

Interest expense

​

$

7,546

​

$

7,398

Amortization of debt issuance costs

​

​

1,345

​

​

1,286

Total

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​

8,891

​

​

8,684

Effective interest rate

​

​

4.6%

​

​

4.5%

​