Interest rate hedge gain (loss) to be reclassified during next twelve months net.

No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- 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 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.

+ References

No definition available.

+ Details

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- Details

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Derivatives and Fair Value Measurements - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($) DerivativeInstrument	Dec. 31, 2021 USD ($)	Nov. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Derivatives Fair Value [Line Items]
Fair value of interest rate swap	$ 0.3
Minimum [Member]
Derivatives Fair Value [Line Items]
General term for commodity and exchange contracts	1 month
Maximum [Member]
Derivatives Fair Value [Line Items]
General term for commodity and exchange contracts	12 months
Interest Rate Swaps [Member]
Derivatives Fair Value [Line Items]
Derivative notional amount	$ 100.0	$ 160.0
Derivative gain (loss) to be reclassified into interest expense during next 12 months	$ 0.5
Ryerson Credit Facility [Member]
Derivatives Fair Value [Line Items]
Number of derivative instruments \| DerivativeInstrument	1
Ryerson Credit Facility [Member] \| Second Interest Rate Swap [Member]
Derivatives Fair Value [Line Items]
Derivative notional amount			$ 100.0
Derivative fixed interest rate			1.539%
Ryerson Credit Facility [Member] \| Interest Rate Swaps [Member]
Derivatives Fair Value [Line Items]
Derivative notional amount				$ 60.0
Derivative fixed interest rate				1.729%