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Convertible Senior Notes (Tables)
3 Months Ended
Mar. 31, 2022
Convertible Senior Notes [Abstract]  
Schedule of Net Carrying Amount

March 31,

December 31,

(in thousands)

2022

2021

Principal amount

$

900,000

$

900,000

Unamortized debt issuance costs

(3,780)

(3,933)

Net carrying amount

$

896,220

$

896,067

Schedule of Interest Expense

Three Months Ended March 31,

(in thousands)

2022

2021

Contractual interest expense

$

3,375

$

1,688

Amortization of debt issuance costs

153

74

Total interest expense

$

3,528

$

1,762