Debt, Number of Payments

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Repayment of Debt, Quarterly Payment

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-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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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 40
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

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Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Long-Term Debt Narrative (Details)			3 Months Ended			9 Months Ended
Long-Term Debt Narrative (Details)	Apr. 30, 2026 USD ($)	Apr. 30, 2019 USD ($) Rate	Sep. 29, 2019 USD ($) Rate	Sep. 30, 2018 USD ($)	Jun. 28, 2015 USD ($)	Sep. 29, 2019 USD ($) Rate	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($)	Dec. 30, 2018 USD ($)
Debt Instrument, Redemption [Line Items]
Gain (Loss) on Extinguishment of Debt			$ 0	$ 0		$ (7,443,000)	$ 0
Redemption Premium		$ 275,000,000
Senior Secured Second Lien Notes, Interest Rate \| Rate			8.00%			8.00%
Line of Credit Facility, Current Borrowing Capacity			$ 73,000,000			$ 73,000,000
Proceeds from Issuance of Debt				$ 75,000,000	$ 200,000,000
Debt Issuance Costs, Net			$ 8,133,000			$ 8,133,000			$ 3,673,000
Debt Instrument, Interest Rate, Effective Percentage			5.40%			5.40%
Letters of Credit Outstanding, Amount			$ 11,600,000			$ 11,600,000
Line of Credit Facility, Remaining Borrowing Capacity			53,900,000			$ 53,900,000
Debt Instrument, Redemption, Period Three [Member]
Debt Instrument, Redemption [Line Items]
Senior Notes, Redemption Price \| Rate						102.00%
Senior Secured Credit Facility [Member]
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity		550,000,000.0
Long-term Line of Credit			0			$ 0			275,000,000
Term Loan B Facility [Member]
Debt Instrument, Redemption [Line Items]
Gain (Loss) on Extinguishment of Debt			(7,443,000)
Line of credit facility, maximum borrowing capacity		425,000,000.0
Proceeds from Issuance of Debt		422,900,000
Long-term Line of Credit			423,937,000			423,937,000			0
Standby Letters of Credit [Member]
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity		35,000,000
Revolving Credit Facility [Member]
Debt Instrument, Redemption [Line Items]
Line of credit facility, maximum borrowing capacity		$ 125,000,000.0
Long-term Line of Credit			59,500,000			59,500,000			$ 0
Base Rate [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate		2.25%
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate		3.25%
Scenario, Forecast [Member] \| Term Loan B Facility [Member]
Debt Instrument, Redemption [Line Items]
Debt, Number of Payments								27
Repayment of Debt, Quarterly Payment								$ 1,100,000
Repayments of Debt	$ 396,300,000
Letter of Credit [Member]
Debt Instrument, Redemption [Line Items]
Line of Credit Facility, Current Borrowing Capacity			$ 20,000,000			$ 20,000,000
Minimum [Member] \| Base Rate [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate			1.75%			1.75%
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate			2.75%			2.75%
Maximum [Member] \| Base Rate [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate			2.75%			2.75%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Interest Rate, Stated Percentage \| Rate			3.75%			3.75%