Note 2 - Business Acquisitions, Goodwill and Purchased Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Gross Carrying Amount, finite-lived intangible assets	$ 322,623	$ 309,615
Accumulated Amortization	178,677	169,511
Developed Technology Rights [Member]
Gross Carrying Amount, finite-lived intangible assets	225,310	224,253
Accumulated Amortization	$ 136,127	128,938
Remaining Useful Life (Year)	3 years 10 months 24 days
Customer Relationships [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 76,500	64,632
Accumulated Amortization	$ 32,490	31,015
Remaining Useful Life (Year)	6 years 8 months 12 days
Trade Names [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 20,548	20,461
Accumulated Amortization	$ 9,894	9,397
Remaining Useful Life (Year)	6 years 2 months 12 days
Noncompete Agreements [Member]
Gross Carrying Amount, finite-lived intangible assets	$ 265	269
Accumulated Amortization	$ 166	$ 161
Remaining Useful Life (Year)	3 years 9 months 18 days