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Borrowings - Amended and restated credit facility (Details) |  | 3 Months Ended
--- | --- | ---
Jan. 20, 2017 USD ($) | Apr. 02, 2017 USD ($) | Mar. 27, 2016 USD ($)
Line of Credit Facility [Line Items] |  |  |
Loss on extinguishment of debt |  | $ 5,582,000 | $ 0
2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Debt instrument, stated interest rate | 2.00% |  |
Maximum leverage ratio | 4.50 |  |
Maximum secured leverage ratio | 3.50 |  |
Minimum interest coverage ratio | 3.50 |  |
Line of credit, debt issuance cost |  | 12,000,000 |
2017 Credit Agreement | Revolving Credit Facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Debt instrument term | 5 years |  |
Maximum borrowing capacity | $ 1,000,000,000.0 |  |
2017 Credit Agreement | Term Loan |  |  |
Line of Credit Facility [Line Items] |  |  |
Maximum borrowing capacity | $ 750,000,000.0 |  |
2013 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Loss on extinguishment of debt |  | $ 400,000 |
London Interbank Offered Rate (LIBOR) | Minimum | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.25% |  |
London Interbank Offered Rate (LIBOR) | Maximum | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 2.50% |  |
Federal Funds Effective Swap Rate | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 0.50% |  |
Adjusted LIBOR | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.00% |  |
Adjusted LIBOR | Minimum | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 0.25% |  |
Adjusted LIBOR | Maximum | 2017 Credit Agreement |  |  |
Line of Credit Facility [Line Items] |  |  |
Basis spread on variable rate | 1.50% |  |

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- Definition Debt Instrument, Covenant Terms, Minimum Interest Coverage Ratio + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount, before accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section S45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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