Commitment Fee Expense

No definition available.

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- Definition

Debt Instrument, Covenant, Minimum Asset Coverage Ratio

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant, Minimum Liquidity

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Debt Instrument, Voluntary Prepayment Fee Percentage, Year Four

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Voluntary Prepayment Fee Percentage, Year Three

+ References

No definition available.

+ Details

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- Definition

Net Proceeds from Sale of Productive Assets, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	lub_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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

- 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

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

Name:	us-gaap_DebtInstrumentLineItems
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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

Name:	us-gaap_LettersOfCreditOutstandingAmount
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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 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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Period Type:	duration

- Definition

Amount of long-term debt classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-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=120398452&loc=d3e534808-122878

+ Details

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

- Definition

The current cash, cash equivalents and investments that are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes current cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.

+ References

+ Details

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Period Type:	instant

- Details

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- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
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- Details

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- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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- Details

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Debt - 2018 Credit Agreement (Details)	Dec. 13, 2018 USD ($)	Dec. 13, 2022 USD ($)	Dec. 13, 2021 USD ($)	Dec. 13, 2020 USD ($)	Aug. 26, 2020 USD ($)	Jun. 03, 2020 USD ($)	Apr. 21, 2020 USD ($)	Apr. 12, 2020 USD ($)	Dec. 13, 2019 USD ($)
Debt Instrument [Line Items]
Outstanding loans committed under letters of credit						$ 1,800,000
Other indebtedness						$ 30,000
2018 Credit Agreement
Debt Instrument [Line Items]
Aggregate commitments	$ 60,000,000.0
Restricted cash and cash equivalents					$ 4,200,000
Amortization payments									$ 10,000,000.0
Commitment fee percentage	0.50%
Prepayment fee percentage, year three	0.02
Prepayment fee percentage, year four	0.01
Commitment fee expense	$ 1,600,000
Net proceeds from asset sales	80.00%
Minimum liquidity					$ 3,000,000.0
Minimum asset coverage ratio					2.50
2018 Credit Agreement \| Scenario, Forecast
Debt Instrument [Line Items]
Amortization payments		$ 15,000,000.0	$ 15,000,000.0	$ 10,000,000.0
2018 Credit Agreement \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	7.75%
Medium-term Notes \| 2018 Credit Agreement
Debt Instrument [Line Items]
Aggregate commitments	$ 80,000,000.0
Line of Credit \| 2018 Credit Agreement \| Revolver
Debt Instrument [Line Items]
Aggregate commitments	10,000,000.0
Delayed Draw Term Loan \| 2018 Credit Agreement
Debt Instrument [Line Items]
Aggregate commitments	$ 10,000,000.0
Remaining borrowing capacity							$ 5,000,000.0	$ 5,000,000.0