Amended Partnership Agreement, Number of Members on Advisory Board

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Per the partnership agreement, the number of members on the advisory committee the Company is entitled to.

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Per the partnership agreement, the number of members on the advisory committee.

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Represents the partnership interest as a percent that my be transferred without complying with the right of first offer to remaining partners.

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For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of dividend income on nonoperating securities.

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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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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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Related Party Transactions - Transactions (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2023 individual	Dec. 31, 2022 USD ($) individual	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
PTL
Related party transactions
Penske transportation solutions, ownership percentage		28.90%
Penske Corporation \| PTL
Related party transactions
Ownership interest in Penske Truck Leasing Company		41.10%
Mitsui and Co \| PTL
Related party transactions
Ownership interest in Penske Truck Leasing Company		30.00%
Penske Corporation and Affiliates
Related party transactions
Provider's cost reimbursed		$ 5,100	$ 6,700	$ 4,100
Amount of provider's cost received		1,300	38	30
Amount due from related party		50	27
Amount due to related party		$ 600	600
PTL
Related party transactions
Number of members on the advisory committee \| individual		6
Number of members on the advisory committee the Company is entitled to \| individual		1
Partnership interest that my be transferred without complying with the right of first offer		9.02%
Pro rata cash dividends received		$ 356,600	$ 165,500	$ 72,200
PTL \| Subsequent Event
Related party transactions
Number of members on the advisory board \| individual	11