Acquisition	6 Months Ended
Jun. 30, 2022
Business Combinations [Abstract]
Acquisitions	(2) Acquisitions On March 31, 2022, the Company paid $3.9 million in cash to purchase assets of a gearbox repair company in the distribution and services segment. Assets acquired consisted primarily of property and equipment. During the six months ended June 30, 2021, the Company purchased four inland tank barges from a leasing company for $7.5 million in cash. The Company had been leasing the barges prior to the purchase.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-URI https://asc.fasb.org/topic&trid=2303972

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4946-128472

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