Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Jan. 01, 2021

Quarterly Financial Information Disclosure [Abstract]

Selected unaudited quarterly financial data was as follows (in thousands, except per share data):


	Fiscal 2020 Quarter Ended
	March 31,		June 30,		September 30,		December 31,
Total revenues (1)	$	226,915	$	259,479	$	231,092	$	270,052
Gross profit (2)	$	184,591	$	169,509	$	159,862	$	191,316
Income (loss) from operations	$	52,809	$	75,534	$	(42,580)	$	24,297
Net income (loss)	$	48,612	$	66,821	$	(32,040)	$	28,388
Net income (loss) per share:
Basic	$	0.16	$	0.22	$	(0.10)	$	0.09
Diluted	$	0.15	$	0.21	$	(0.10)	$	0.09


	Fiscal 2019 Quarter Ended
	March 31,		June 30,		September 30,		December 31, (3)
Total revenues (1)	$	215,487	$	240,275	$	271,703	$	240,310
Gross profit (2)	$	172,080	$	186,136	$	184,231	$	184,406
Income from operations	$	84,559	$	91,989	$	115,606	$	77,316
Net income	$	75,775	$	79,042	$	97,452	$	68,743
Net income per share:
Basic	$	0.25	$	0.26	$	0.32	$	0.23
Diluted	$	0.24	$	0.25	$	0.31	$	0.22

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(1) Total revenues for the quarters ended March 31, 2020, June 30, 2020, September 30, 2020 and December 31, 2020, included milestone revenue of $0.1 million, $43.5 million, $13.5 million and $29.4 million, respectively, compared to $10.0 million, $20.4 million, $50.6 million and $15.1 million during the comparable periods in 2019. Due to uncertainties surrounding the timing and achievement of regulatory and development milestones, it is difficult to predict future milestone revenues and such milestones can vary significantly from period to period.

(2) Gross profit is computed as net product revenues less cost of goods sold.

(3) The fiscal quarter ended December 31, 2019 is a 14-week fiscal period. All other quarters presented are 13-week fiscal periods.