Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Schedule of useful life for property, plant and equipment

Depreciation is provided on property, plant and equipment, including finance lease assets, primarily utilizing the straight-line method over the following estimated useful service lives or lease term:


Computer hardware and office equipment		3-5 years
Computer software		3-10 years
Autos and light trucks		5-7 years
Furniture, fixtures, and trailers		7-10 years
Composite mats (rental fleet)		7-12 years
Machinery and heavy equipment		10-15 years
Owned buildings		20-39 years
Leasehold improvements	Lease term, including reasonably assured renewal periods

Cumulative effect of the changes made to consolidated balance sheet for the adoption of new guidance

The cumulative effect of the changes made to our consolidated balance sheet for the adoption of the new accounting guidance for credit losses were as follows:


(In thousands)	Balance at December 31, 2019		Impact of Adoption of New Credit Losses Guidance		Balance at January 1, 2020
Receivables, net	$	216,714	$	(959)	$	215,755
Deferred tax assets	3,600		59		3,659
Deferred tax liabilities	34,247		(165)		34,082
Retained earnings	134,119		(735)		133,384