Concentration of Risk and Enterprise Wide Disclosures

12 Months Ended

Dec. 31, 2020

Risks and Uncertainties [Abstract]

Concentration of Risk and Enterprise Wide Disclosures

4.Concentration of Risk and Enterprise Wide Disclosures

In both reportable segments accounts receivable include amounts billed to governmental agencies and private customers and do not bear interest. Balances billed to customers but not paid pursuant to retainage provisions generally become payable upon contract completion and acceptance by the owner.

The table below presents the concentrations of current receivables (trade and retainage) at December 31, 2020 and December 31, 2019, respectively:

	December 31, 2020				December 31, 2019
Federal Government	$	4,826	4	%	$	4,765	3	%
State Governments		—	-	%		5,864	4	%
Local Governments		17,823	13	%		41,944	26	%
Private Companies		110,616	83	%		109,114	67	%
Gross receivables		133,265	100	%		161,687	100	%
Allowance for credit losses		(411)				(2,600)
Net receivables	$	132,854			$	159,087

At December 31, 2020 and 2019, no single customer accounted for more than 10.0% of total current receivables.

Additionally, the table below represents concentrations of contract revenue by type of customer for the years ended December 31, 2020, 2019 and 2018.

	2020		%		2019		%		2018		%
Federal Government	$	51,793	7	%	$	46,425	6	%	$	42,143	8	%
State Governments		27,574	4	%		47,831	7	%		30,470	6	%
Local Government		202,839	29	%		212,958	30	%		107,478	21	%
Private Companies		427,736	60	%		401,176	57	%		340,803	65	%
Total contract revenues	$	709,942	100	%	$	708,390	100	%	$	520,894	100	%

In the year ended December 31, 2020 one customer in the Local Governments category accounted for 11.4% of total contract revenues. In the years ended December 31, 2019 and 2018, no single customer exceeded 10.0% of total contract revenues.

The Company does not believe that the loss of any one of its customers would have a material adverse effect on the Company or its subsidiaries and affiliates since no single specific customer sustains such a large portion of receivables or contract revenue over time.

The concrete segment primarily purchases concrete from select suppliers. The loss of any one of these suppliers could adversely impact short-term operations.

Contract revenues generated outside the United States totaled 1.8%, 1.6% and 2.3% of total revenues for the years ended December 31, 2020, 2019 and 2018, respectively, and were primarily located in the Caribbean Basin and Mexico.