Debt instrument covenant interest coverage ratio.

No definition available.

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- Definition

Debt instrument covenant leverage ratio.

+ References

No definition available.

+ Details

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- Definition

Debt instrument fixed portion of outstanding debt percentage.

+ References

No definition available.

+ Details

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- Definition

Interest expense amortization period.

+ References

No definition available.

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- Definition

Line of credit facility issuance fee percentage.

+ References

No definition available.

+ Details

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- Definition

Long-term debt and finance lease liabilities line items.

+ References

No definition available.

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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

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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Balance Type:	credit
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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
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-SubTopic 10
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-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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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.

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-Name Accounting Standards Codification
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-SubTopic 10
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ 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

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- Definition

Amount of the required periodic payment applied to principal.

+ References

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

- 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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Balance Type:	na
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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Balance Type:	debit
Period Type:	duration

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Long-Term Debt and Finance Lease Liabilities - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Apr. 01, 2018	Jun. 30, 2019	Jul. 01, 2018	Dec. 30, 2018	Mar. 27, 2018	Apr. 17, 2015
Long Term Debt And Finance Lease Liabilities [Line Items]
Borrowings during the period			$ 122,860,000	$ 140,000,000
Amended and Restated Credit Agreement [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Borrowings under credit facilities	$ 515,000,000.0		$ 515,000,000.0		$ 453,000,000.0
Fixed portion of outstanding debt percentage			49.00%
Participation fee			1.50%
Issuance fee			0.125%
Credit facility termination date			Mar. 27, 2023
Borrowings during the period	33,200,000		$ 122,900,000		233,000,000.0
Principal payments on the Credit Facility	18,200,000		$ 60,900,000		$ 128,000,000.0
Net leverage ratio			325.00%
Interest coverage ratio			175.00%
Former Credit Facility [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility maximum borrowing capacity							$ 450,000,000.0
Credit facility termination date			Apr. 17, 2020
Former Credit Facility [Member] \| Swingline Loan Subfacility [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Debt instrument face amount							15,000,000.0
Senior Lien [Member] \| Secured Debt [Member] \| Amended and Restated Credit Agreement [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Loss on early extinguishment of debt		$ (300,000)
Letters of credit issued	26,900,000		$ 26,900,000
Line of credit interest rate terms			LIBOR plus 1.50% per annum. The interest rate margins are subject to adjustment pursuant to a pricing grid based on the Company’s total net leverage ratio, as set forth in the Amended and Restated Credit Agreement.
Senior Lien [Member] \| Secured Debt [Member] \| Amended and Restated Credit Agreement [Member] \| LIBOR [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Interest rate spread on base rate			1.50%
Senior Lien [Member] \| Secured Debt [Member] \| Amended and Restated Credit Agreement [Member] \| Minimum [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility unused commitment fee percentage			0.15%
Senior Lien [Member] \| Secured Debt [Member] \| Amended and Restated Credit Agreement [Member] \| Maximum [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility unused commitment fee percentage			0.30%
Senior Lien [Member] \| Secured Debt [Member] \| Amended and Restated Credit Agreement [Member] \| Swingline Loan Subfacility [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Debt instrument face amount	15,000,000.0		$ 15,000,000.0
Senior Lien [Member] \| Secured Debt [Member] \| Former Credit Facility [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility maximum borrowing capacity							$ 450,000,000.0
Borrowings under credit facilities	0		$ 0
Line of credit interest rate terms			LIBOR plus 1.50% per annum, or a base rate plus 0.50% per annum. The interest rate margins were subject to adjustment pursuant to a pricing grid based on the Company’s total gross leverage ratio, as defined in the Former Credit Facility.
Credit facility unused commitment fee percentage			0.20%
Senior Lien [Member] \| Secured Debt [Member] \| Former Credit Facility [Member] \| LIBOR [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Interest rate spread on base rate			1.50%
Senior Lien [Member] \| Secured Debt [Member] \| Former Credit Facility [Member] \| Alternate Base Rate [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Interest rate spread on base rate			0.50%
Senior Lien [Member] \| Secured Debt [Member] \| Former Credit Facility [Member] \| Amended and Restated Credit Agreement [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Capitalized debt issuance costs	700,000		$ 700,000
Senior Lien [Member] \| Secured Debt [Member] \| $700.0 million Credit Facility [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Debt instrument face amount	700,000,000.0		700,000,000.0
Senior Lien [Member] \| Secured Debt [Member] \| $700.0 million Credit Facility [Member] \| Amended and Restated Credit Agreement [Member]
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility maximum borrowing capacity						$ 700,000,000.0
Capitalized debt issuance costs	$ 2,100,000		$ 2,100,000
Interest expense term			5 years