Fair Value Measurements (Summary of Valuation of Company's Financial Instruments by Various Levels) (Details) - USD ($) $ in Thousands		Jun. 29, 2025	Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		$ 237,820	$ 234,342
Liabilities measured at fair value		1,694	273
Quoted market prices in active markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		117,683	113,919
Liabilities measured at fair value		0	0
Significant other observable inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		120,137	120,423
Liabilities measured at fair value		1,694	273
Cash Equivalents
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		114,933	111,043
Cash Equivalents | Quoted market prices in active markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		114,933	111,043
Cash Equivalents | Significant other observable inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value		0	0
Trading securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	2,750	2,876
Trading securities | Quoted market prices in active markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	2,750	2,876
Trading securities | Significant other observable inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	0	0
Available-for-sale Investments | U.S. Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	119,702	119,370
Available-for-sale Investments | U.S. Treasury Securities | Quoted market prices in active markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	0	0
Available-for-sale Investments | U.S. Treasury Securities | Significant other observable inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[1]	119,702	119,370
Foreign currency forward contracts
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[2]	435	1,053
Liabilities measured at fair value	[3]	1,694	273
Foreign currency forward contracts | Quoted market prices in active markets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[2]	0	0
Liabilities measured at fair value	[3]	0	0
Foreign currency forward contracts | Significant other observable inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	[2]	435	1,053
Liabilities measured at fair value	[3]	$ 1,694	$ 273

[1] Included in Short-term investments on the Company’s unaudited condensed consolidated balance sheets.

[2] Included in Prepaid expenses and other current assets on the Company’s unaudited condensed consolidated balance sheets.

[3] Included in Other accrued liabilities on the Company's unaudited condensed consolidated balance sheets.