Cash, Cash Equivalents, and Investments - Effective Maturity Dates of Available-for-Sale Investments (Detail) $ in Thousands	Mar. 29, 2020 USD ($)
Debt Securities, Available-for-sale [Line Items]
1 year or less	$ 155,123
1-2 years	221,107
2-3 years	208,829
3-4 years	12,659
4-5 years	4,360
Fair value	602,078
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
1 year or less	54,937
1-2 years	87,940
2-3 years	80,663
3-4 years	9,266
4-5 years	0
Fair value	232,806
Treasury Bills
Debt Securities, Available-for-sale [Line Items]
1 year or less	19,763
1-2 years	101,648
2-3 years	89,045
3-4 years	0
4-5 years	0
Fair value	210,456
Asset-Backed Securities
Debt Securities, Available-for-sale [Line Items]
1 year or less	69,956
1-2 years	10,436
2-3 years	33,206
3-4 years	3,393
4-5 years	4,360
Fair value	121,351
Sovereign Bonds
Debt Securities, Available-for-sale [Line Items]
1 year or less	3,487
1-2 years	21,083
2-3 years	0
3-4 years	0
4-5 years	0
Fair value	24,570
Agency Bonds
Debt Securities, Available-for-sale [Line Items]
1 year or less	0
1-2 years	0
2-3 years	5,915
3-4 years	0
4-5 years	0
Fair value	5,915
Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
1 year or less	6,980
1-2 years	0
2-3 years	0
3-4 years	0
4-5 years	0
Fair value	$ 6,980