Covenant leverage ratio as defined.

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- Definition

Debt instrument end of term fee.

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- Definition

Interest rate margin.

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No definition available.

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- Definition

Maximum leverage covenant ratio.

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No definition available.

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- Definition

Term loan maturity date.

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No definition available.

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Term loan revised maturity date.

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No definition available.

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- Definition

Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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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.

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No definition available.

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Amount of the required periodic payments including both interest and principal payments.

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- Definition

Amount, after accumulated amortization, of debt discount.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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- Definition

The effective interest rate at the end of the reporting period.

+ References

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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

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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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.

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The carrying value as of the balance sheet date of the current portion 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.

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Reference 1: 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(13))
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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Long-Term Loans - Additional Information (Detail) - USD ($)				12 Months Ended
	Dec. 30, 2016	Sep. 30, 2016	Jun. 23, 2016	Dec. 31, 2017	Dec. 31, 2016	Jun. 13, 2016	Aug. 07, 2014
Debt Instrument [Line Items]
Percentage of initial interest margin		1.45%		1.15%	1.15%
Commitment fee applicable for unused amount of RCF				35.00%
Line of credit facility, actual interest rate				2.84%	2.15%
Term loan maturity date				Jun. 13, 2020
Term loan revised maturity date				Jun. 13, 2021
Leverage covenant ratio				2.75
Covenant description				Conditions include that there not be an event of default, the leverage covenant (as described above) not exceeding 2.0 to 1.0 when most recently tested and a look forward certificate being issued pursuant to which the SD U.K. Group would confirm that it is projected to remain in compliance with the financial maintenance covenants detailed above for the next six months). In addition, subject to certain exceptions, all transactions between the SD U.K. Group and the Company and its other subsidiaries must be on an arm’s length basis.
Maximum [Member]
Debt Instrument [Line Items]
Interest coverage covenant ratio				4.0
Credit Agreement [Member] \| JP Morgan Chase Bank, N.A. [Member]
Debt Instrument [Line Items]
Aggregate principal amount							$ 297,000,000
Debt instrument discount							$ 3,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity of term and revolving loan facilities			$ 15,000,000
Amount available under RCF				$ 11,250,000
Revolving Credit Facility [Member] \| Currency Hedging [Member]
Debt Instrument [Line Items]
RCF utilized for hedging				3,750,000
U K Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity of term and revolving loan facilities						$ 125,000,000
Repayment of annual installments				20,000,000
Term Loan [Member] \| U K Facility [Member]
Debt Instrument [Line Items]
Amount borrowed under term and revolving loan facilities			$ 110,000,000
Term loans principal outstanding				$ 73,600,000
Annual installments on term loan	$ 16,400,000
Final payment of debt	$ 40,900,000