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Debt (Details Textual) - USD ($) $ in Thousands |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 28, 2016 | Oct. 09, 2014 | Sep. 30, 2017 | Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |  |  |  |
Principal payments on term loan |  |  |  | $ 300,000 | $ 0 | $ 0
Unamortized discount |  |  |  | 4,709 | 5,631 |
Long-term Debt [Member] | Term Loan Due 2019 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate principal amount issued | $ 300,000 |  |  | $ 0 | 300,000 |
Debt instrument, term | 3 years |  |  |  |  |
Debt Instrument, maturity date |  |  |  | Jan. 28, 2019 |  |
Principal payments on term loan |  |  | $ 300,000 |  |  |
Unamortized discount |  |  |  | $ 0 | 226 |
Senior Notes [Member] | Senior Notes Due 2024 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Aggregate principal amount issued |  | $ 350,000 |  | 350,000 | 350,000 |
Stated interest rate of Senior Notes |  | 4.375% |  |  |  |
Proceeds from Senior Notes, net |  | $ 342,400 |  |  |  |
Unamortized discount |  | 1,400 |  | $ 4,709 | $ 5,405 |
Debt issuance costs |  | $ 6,200 |  |  |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Amount, after accumulated amortization, of debt discount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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