XML 52 R40.htm IDEA: XBRL DOCUMENT v3.23.1
Amortized Cost and Fair Value of Available-for-Sale Investments (Detail) - USD ($)
$ in Thousands
Apr. 01, 2023
Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 160,280 $ 169,293
Gross Unrealized Gains 31 1
Gross Unrealized Losses 9,368 10,764
Fair Value 150,943 158,530
Money market investments    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 272 21,910
Gross Unrealized Gains 0 0
Gross Unrealized Losses 0 0
Fair Value 272 21,910
Asset-backed securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 18,298 18,905
Gross Unrealized Gains 0 0
Gross Unrealized Losses 2,656 2,889
Fair Value 15,642 16,016
Corporate bonds and direct obligations of government agencies    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 125,819 126,134
Gross Unrealized Gains 6 1
Gross Unrealized Losses 6,633 7,775
Fair Value 119,192 118,360
U.S. Treasury obligations    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 15,891 2,344
Gross Unrealized Gains 25 0
Gross Unrealized Losses 79 100
Fair Value $ 15,837 $ 2,244