Finance Lease Agreement, Amount

No definition available.

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- Definition

Line of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Percentage Of Ownership Over Guarantor Subsidiaries

+ References

No definition available.

+ Details

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Period Type:	duration

- 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
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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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+ Details

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

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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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Period Type:	instant

- Details

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Financing Arrangements (Narrative) (Details) - USD ($)	12 Months Ended
Financing Arrangements (Narrative) (Details) - USD ($)	Dec. 31, 2017	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2018	Dec. 31, 2015
Line of Credit Facility [Line Items]
Percentage ownership	100.00%
Finance lease agreement, amount					$ 50,000,000.0
Southwest Steel Processing LLC \| Arkansas Development Finance Authority
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 11,000,000.0
Borrowings outstanding		$ 6,800,000
Machinery and Equipment
Line of Credit Facility [Line Items]
Finance lease obligations		$ 17,100,000
Senior Notes Due 2027 \| Senior Notes \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Aggregate principal amount	$ 350,000,000.0
Stated interest rate	6.625%
Revolving credit facility
Line of Credit Facility [Line Items]
Stated interest rate		1.32%
Revolving credit facility \| Seventh Amendment Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 350,000,000.0
Revolving credit facility \| Amendment No. 1 to Seventh Amended and Restated Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 375,000,000.0
Increase in additional borrowing capacity				100,000,000.0
Bank guarantees and letters of credit outstanding		$ 36,000,000.0	$ 34,900,000
Revolving credit facility \| Financing Agreement \| Line of Credit \| Banco Bolbao Vizcaya Argentaria, S.A.
Line of Credit Facility [Line Items]
Maximum borrowing capacity		11,700,000
Borrowings outstanding		0
Revolving Credit Facility Canadian Sub-Limit \| Seventh Amendment Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity	35,000,000.0
Revolving Credit Facility Canadian Sub-Limit \| Amendment No. 1 to Seventh Amended and Restated Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity				40,000,000.0
Revolving Credit Facility European Sub-Limit \| Seventh Amendment Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25,000,000.0
Revolving Credit Facility European Sub-Limit \| Amendment No. 1 to Seventh Amended and Restated Credit Agreement \| Park-Ohio Industries, Inc.
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 30,000,000.0
Industrial Equipment Group European Facilities \| Line of Credit \| Banco Bolbao Vizcaya Argentaria, S.A.
Line of Credit Facility [Line Items]
Maximum borrowing capacity		$ 29,300,000