Debt (Tables)

9 Months Ended

Oct. 03, 2020

Debt

Summary of information about the equity and liability components of convertible debt

The carrying amount of the notes consisted of the following (in thousands):

	October 3,		December 28,
	2020		2019
Liability component
Principal	$	680,567	$	400,000
Unamortized debt discount		(110,135)		(27,580)
Unamortized debt issuance costs		(8,754)		(4,163)
Net carrying amount	$	561,678	$	368,257
Equity component
Net carrying amount	$	109,624	$	57,735

Schedule of components of interest expense

Interest expense related to the notes was comprised of the following (in thousands):

	Three Months Ended				Nine Months Ended
	October 3,		September 28,		October 3,		September 28,
	2020		2019		2020		2019
Contractual interest expense	$	1,365	$	1,360	$	4,206	$	4,110
Amortization of debt discount		6,041		2,930		13,419		8,716
Amortization of debt issuance costs		546		442		1,527		1,315
	$	7,952	$	4,732	$	19,152	$	14,141