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Schedule of Fixed Income Securities in Unrealized Loss Positions (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 30, 2014
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Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | $ 503,420
Unrealized Losses Less Than 12 Months - Unrealized | (1,686)
Unrealized Losses 12 Months or Greater - Fair Value | 10,841
Unrealized Losses 12 Months or Greater - Unrealized | (173)
Total - Fair Value | 514,261
Total - Unrealized | (1,859)
Municipal Notes And Bonds |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 17,114
Unrealized Losses Less Than 12 Months - Unrealized | (28)
Total - Fair Value | 17,114
Total - Unrealized | (28)
US Treasury and Agencies |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 96,394
Unrealized Losses Less Than 12 Months - Unrealized | (166)
Total - Fair Value | 96,394
Total - Unrealized | (166)
Government-Sponsored Enterprises |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 14,071
Unrealized Losses Less Than 12 Months - Unrealized | (30)
Total - Fair Value | 14,071
Total - Unrealized | (30)
Foreign Government Bonds |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 18,487
Unrealized Losses Less Than 12 Months - Unrealized | (86)
Total - Fair Value | 18,487
Total - Unrealized | (86)
Corporate Notes And Bonds |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 261,299
Unrealized Losses Less Than 12 Months - Unrealized | (729)
Unrealized Losses 12 Months or Greater - Fair Value | 6,465
Unrealized Losses 12 Months or Greater - Unrealized | (20)
Total - Fair Value | 267,764
Total - Unrealized | (749)
Mortgage Backed Securities - Residential |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 20,974
Unrealized Losses Less Than 12 Months - Unrealized | (243)
Unrealized Losses 12 Months or Greater - Fair Value | 127
Unrealized Losses 12 Months or Greater - Unrealized | (9)
Total - Fair Value | 21,101
Total - Unrealized | (252)
Mortgage Backed Securities - Commercial |
Schedule of Available-for-sale Securities [Line Items] |
Unrealized Losses Less Than 12 Months - Fair Value | 75,081
Unrealized Losses Less Than 12 Months - Unrealized | (404)
Unrealized Losses 12 Months or Greater - Fair Value | 4,249
Unrealized Losses 12 Months or Greater - Unrealized | (144)
Total - Fair Value | 79,330
Total - Unrealized | $ (548)

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- Definition Amount of accumulated pre-tax unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer impacting investments. + References No definition available. + Details
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