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Credit Agreement (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 30, 2017 USD ($) | Dec. 31, 2016 USD ($)
Revolving credit facility |  |
Senior Loan Agreement |  |
Revolving credit facility, maximum capacity | $ 125.0 |
Amount of borrowings under revolving credit facility | $ 0.0 | $ 0.0
Percentage of stock of domestic subsidiaries pledged as collateral for borrowings | 100.00% |
Percentage of stock of foreign subsidiaries pledged as collateral for borrowings | 65.00% |
Value of stock in net assets pledged as collateral for borrowings | $ 27.3 | $ 22.6
Revolving credit facility | Minimum |  |
Senior Loan Agreement |  |
Commitment fee payable on the unused portion of the credit facility (as a percent) | 0.20% |
Ratio of consolidated interest expense to consolidated EBITDA | 2.5 |
Revolving credit facility | Maximum |  |
Senior Loan Agreement |  |
Commitment fee payable on the unused portion of the credit facility (as a percent) | 0.35% |
Ratio of consolidated debt to consolidated EBITDA | 3.0 |
Revolving credit facility | Base rate |  |
Senior Loan Agreement |  |
Variable rate basis | base rate |
Revolving credit facility | Base rate | Minimum |  |
Senior Loan Agreement |  |
Interest margin (as a percent) | 0.25% |
Revolving credit facility | Base rate | Maximum |  |
Senior Loan Agreement |  |
Interest margin (as a percent) | 1.25% |
Revolving credit facility | Eurocurrency rate |  |
Senior Loan Agreement |  |
Variable rate basis | eurocurrency rate |
Revolving credit facility | Eurocurrency rate | Minimum |  |
Senior Loan Agreement |  |
Interest margin (as a percent) | 1.25% |
Revolving credit facility | Eurocurrency rate | Maximum |  |
Senior Loan Agreement |  |
Interest margin (as a percent) | 2.25% |
Secured by letters of credit |  |
Senior Loan Agreement |  |
Revolving credit facility, maximum capacity | $ 15.0 |
Amounts outstanding under letters of credit | $ 3.6 |

X
- Definition Represents the value of the (consolidated adjusted earning before interest, taxes, depreciation and amortization, as defined) in the Consolidated Interest Coverage Ratio required by the covenants of the entity's senior credit facilities. + References No definition available. + Details
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- Definition Represents the ratio of consolidated debt to consolidated EBITDA (earnings before interest, taxes, depreciation and amortization) ratio permitted under financial covenants. + References No definition available. + Details
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- Definition Represents the percentage of the stock of the entity's domestic subsidiaries pledged as collateral for the credit agreement. + References No definition available. + Details
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- Definition Represents the percentage of the stock of the entity's foreign subsidiaries pledged as collateral for the credit agreement. + References No definition available. + Details
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- Definition Represents the value of stock in net assets which is pledged as collateral for the credit agreement. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + 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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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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