Derivative underlying hedge percent.

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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- Definition

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

+ References

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-Topic 210
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-Paragraph 1
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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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- Definition

Fixed price related to the price risk swap derivative.

+ 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

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- Definition

Fair value of all derivative assets designated as fair value hedging instruments.

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- Definition

Amount after tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Details

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- Details

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Fair Value Measurements (Narrative) (Details) gal in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) $ / gal	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) $ / gal gal	Jun. 30, 2020 USD ($)	May 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Derivatives Fair Value [Line Items]
Derivative underlying hedge percent			80.00%
Derivative, Nonmonetary Notional Amount, Volume \| gal			8.7
Fair value hedge assets	$ 4,802,000		$ 4,802,000			$ 1,739,000
Reclassification of derivative (gains) losses to earnings—net of tax	1,878,000	$ (2,490,000)	3,404,000	$ (3,828,000)
5.25% Senior Notes [Member]
Derivatives Fair Value [Line Items]
Debt instrument, face amount					$ 325,000,000
Stated interest rate					5.25%
5.25% Senior Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Derivatives Fair Value [Line Items]
Fair value of debt	$ 334,783,000		$ 334,783,000
Minimum [Member]
Derivatives Fair Value [Line Items]
Fixed price range \| $ / gal	1.22		1.22
Maximum [Member]
Derivatives Fair Value [Line Items]
Fixed price range \| $ / gal	1.90		1.90
Fuel Hedge Contracts [Member]
Derivatives Fair Value [Line Items]
Derivative underlying hedge percent			80.00%