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Debt (Details) - USD ($) |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 12, 2016 | Jul. 02, 2016 | Jul. 04, 2015 | Dec. 31, 2015 | Apr. 30, 2015 | Jun. 30, 2013
Debt [Line Items] |  |  |  |  |  |  |
Notes payable and debt |  |  | $ 125,260,000 |  | $ 175,309,000 |  |
Long-term debt |  |  | 1,631,698,000 |  | 1,493,027,000 |  |
Total debt |  |  | 1,756,958,000 |  | 1,668,336,000 |  |
Proceeds from debt issuances |  |  | 400,177,000 | $ 195,073,000 |  |  |
Line of Credit [Line Items] |  |  |  |  |  |  |
Foreign subsidiary lines of credit |  |  | 260,000 |  | 322,000 |  |
Line of credit maximum borrowing capacity |  |  | $ 101,000,000 |  | $ 97,000,000 |  |
Line of credit interest rate during the period |  |  | 1.48% |  | 1.24% |  |
Current Liabilities |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Unamortized debt issuance costs |  |  |  |  | $ (13,000) |  |
Long-Term Liabilities |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Unamortized debt issuance costs |  |  | $ (3,302,000) |  | (1,973,000) |  |
Senior unsecured notes - Series B [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  | 5.00% |  |  |  |
Long-term debt |  |  | $ 100,000,000 |  | $ 100,000,000 |  |
Senior unsecured notes - Series C [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  |  |  | 2.50% |  |
Notes payable and debt |  |  |  |  | $ 50,000,000 |  |
Senior unsecured notes - Series D [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  | 3.22% |  |  |  |
Long-term debt |  |  | $ 100,000,000 |  | 100,000,000 |  |
Senior unsecured notes - Series E [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  | 3.97% |  |  |  |
Long-term debt |  |  | $ 50,000,000 |  | 50,000,000 |  |
Senior unsecured notes - Series F [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  | 3.40% |  |  |  |
Long-term debt |  |  | $ 100,000,000 |  | 100,000,000 |  |
Senior unsecured notes - Series G [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Stated interest rate on debt instrument |  |  | 3.92% |  |  |  |
Long-term debt |  |  | $ 50,000,000 |  | 50,000,000 |  |
Senior unsecured notes - Series H [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Interest rate terms on debt |  |  | * Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%. |  |  |  |
Long-term debt | [1] |  | $ 50,000,000 |  | 50,000,000 |  |
Senior unsecured notes - Series I [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Face value of debt |  | $ 50,000,000 |  |  |  |  |
Debt term |  |  | 7 years |  |  |  |
Stated interest rate on debt instrument |  |  | 3.13% |  |  |  |
Long-term debt |  |  | $ 50,000,000 |  |  |  |
Senior unsecured notes - Series J [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Face value of debt |  | 40,000,000 |  |  |  |  |
Debt term |  |  | 8 years |  |  |  |
Interest rate terms on debt |  |  | ** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%. |  |  |  |
Long-term debt | [2] |  | $ 40,000,000 |  |  |  |
Senior unsecured notes - Series K [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Face value of debt |  | 160,000,000 |  |  |  |  |
Debt term |  |  | 10 years |  |  |  |
Stated interest rate on debt instrument |  |  | 3.44% |  |  |  |
Long-term debt |  |  | $ 160,000,000 |  |  |  |
Credit Agreements |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Interest rate terms on debt |  |  | The interest rates applicable to the Amended Credit Agreement are, at the Company’s option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 80 basis points and 117.5 basis points for adjusted LIBO rate loans. |  |  |  |
Debt facility fee |  |  | The facility fee on the Amended Credit Agreement ranges between 7.5 basis points and 20 basis points. |  |  |  |
Debt covenant description |  |  | The Amended Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. |  |  |  |
Notes payable and debt |  |  | $ 125,000,000 |  | 125,000,000 |  |
Long-term debt |  |  | 935,000,000 |  | 1,045,000,000 |  |
Unused borrowing capacity |  |  | 538,000,000 |  | 428,000,000 |  |
Credit Agreements | Term loan facility [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Face value of debt |  |  |  |  |  |  | $ 300,000,000
Credit Agreements | Revolving facilities [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Face value of debt |  |  |  |  |  | $ 1,300,000,000 | $ 1,100,000,000
Long-term debt |  |  | $ 635,000,000 |  |  |  |
Unsecured debt |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Call feature on debt instrument |  |  | The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount or prepayment premium for Series H and J senior unsecured notes. In the event of a change in control of the Company (as defined in the note purchase agreement), the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest. |  |  |  |
Debt covenant description |  |  | These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1 for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. |  |  |  |
Total debt |  |  | $ 700,000,000 |  | $ 500,000,000 |  |
Proceeds from debt issuances |  | 250,000,000 |  |  |  |  |
Unsecured debt | Payments towards outstanding portion of revolving facility [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Proceeds from debt issuances |  | $ 225,000,000 |  |  |  |  |
Credit Agreements and Unsecured Debt [Member] |  |  |  |  |  |  |
Debt [Line Items] |  |  |  |  |  |  |
Weighted-average interest rate |  |  | 2.40% |  | 2.11% |  |
[1] | * Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.
[2] | ** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.

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