Credit facility additional borrowing capacity option to increase maximum borrowing capacity.

No definition available.

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- Definition

Percentage of floating rate debt covered.

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No definition available.

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Percentage of interest rate protection.

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Amount of the total principal payments made during the annual reporting period.

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

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

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- Definition

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

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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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- Definition

Description of debt redemption features under terms of the debt agreement.

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

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Date the debt instrument was repurchased, in CCYY-MM-DD format.

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

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Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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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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- Definition

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

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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

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The effective interest rate during the reporting period.

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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.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Notes, Loans Payable, and Financing Arrangements - Additional Information (Detail) - USD ($)		6 Months Ended
	Nov. 19, 2019	Oct. 31, 2019	Nov. 22, 2019	Feb. 28, 2018	Oct. 27, 2016	Jul. 06, 2015	Jun. 18, 2015	Jun. 15, 2015
Debt Instrument [Line Items]
Interest description of revolving line of credit		The Revolving Line provides for availability for general corporate purposes, with borrowings to bear interest at a variable rate equal to LIBOR or prime plus an applicable margin based on our consolidated leverage ratio, at our election.
Credit facility, maturity		Jun. 15, 2020
Percentage of interest rate protection on term loan								75.00%
Fair value of the interest rate swap asset		$ 92,000
Interest Rate Swap
Debt Instrument [Line Items]
Percentage of floating rate debt covered							100.00%
Derivative, notional amount							$ 105,000,000.0
Derivative, maturity date		Jun. 15, 2020
Derivative, fixed interest rate						1.56%
Gain on termination of interest rate swap	$ 40,000
Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity								$ 175,000,000.0
Credit Facilities
Debt Instrument [Line Items]
Borrowings outstanding		$ 50,000,000.0
Outstanding letters of credit		$ 1,000,000.0
Credit Facilities \| LIBOR Rate
Debt Instrument [Line Items]
Interest rate on borrowings		4.13%
Term Loan
Debt Instrument [Line Items]
Outstanding debt		$ 78,200,000						$ 105,000,000.0
Principal payments per annum		$ 6,300,000
Debt instrument, interest rate, effective percentage		4.29%
5.000% Senior Notes due 2020
Debt Instrument [Line Items]
Notes issued				$ 75,000,000.0
Debt issuance cost				$ 158,000
Debt instrument, interest rate				5.00%
Description of redemption for senior notes		As of February 28, 2019, we may, at our option, upon not less than 30 nor more than 60 days’ prior notice, redeem all or a portion of the 2020 Senior Notes at a redemption price of 100.000% of the principal amount of the 2020 Senior Notes to be redeemed plus accrued and unpaid interest as of the applicable redemption date. On December 5, 2019, we issued a notice of redemption to holders of our outstanding 5.000% Senior Notes that we intend to redeem all of our outstanding 5.000% Senior Notes on January 6, 2020, or the Redemption Date. The redemption price for the 5.000% Senior Notes will be 100% of the principal amount of the 5.000% Senior Notes, plus accrued and unpaid interest to, but not including, the Redemption Date.
Redemption price of senior notes	100.00%	100.00%
Debt instrument redemption date	Jan. 06, 2020
Second Amendment \| Unsecured Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity					$ 350,000,000.0
Credit facility additional borrowing capacity option to increase maximum borrowing capacity					$ 150,000,000.0
Credit facility, maturity		Oct. 27, 2021
Fifth Amendment \| Unsecured Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity			$ 250,000,000.0
Credit facility additional borrowing capacity option to increase maximum borrowing capacity			$ (50,000,000.0)