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Organization and Summary of Significant Accounting Policies - Narrative (Details) € in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) segment product country	Jan. 01, 2021 USD ($)	Jan. 03, 2020 USD ($)	Dec. 31, 2021 EUR (€) derivative_instrument
Organization And Summary Of Significant Policies [Line Items]
Number of countries with FDA approval, excluding the U.S. | country	61
Number of operating segments | segment	1
Impairment charge on goodwill	$ 0	$ 0	$ 0
Percent discount for prompt payment	2.00%
Discount expected to be earned	100.00%
Medicare Part D funding mandate	70.00%
Cost of goods sold is related to product	3.00%
Advertising expense	$ 31,800,000	$ 25,100,000	$ 17,900,000
Foreign Exchange Forward
Organization And Summary Of Significant Policies [Line Items]
Number of forward contract outstanding | derivative_instrument				1
Forward contract outstanding, amount | €				€ 9.8
Forward contract maturity (in months)	3 months
Net gain on maturity of forward contracts	$ 800,000
Maximum
Organization And Summary Of Significant Policies [Line Items]
Estimated useful lives	15 years
Resulting From Discovery Efforts
Organization And Summary Of Significant Policies [Line Items]
Number of products that entered in the commercial marketplace | product	4
Products Derived From Other Compounds
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Number of products that entered in the commercial marketplace | product	2

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