Concentration of Risk and Enterprise Wide Disclosures

3 Months Ended

Mar. 31, 2018

Concentration of Risk and Enterprise Wide Disclosures

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 March 31, 2018 and December 31, 2017, respectively:



	March 31, 2018				December 31, 2017
Federal Government	$	4,137	4	%	$	3,509	3	%
State Governments	6,745		6	%	4,503		3	%
Local Governments	17,593		16	%	18,256		15	%
Private Companies	83,807		74	%	97,874		79	%
Total current receivables	$	112,282	100	%	$	124,142	100	%

At March 31, 2018 and December 31, 2017, no single customer accounted for more than 10% of total current receivables.

Additionally, the table below represents concentrations of contract revenue by type of customer for the three months ended March 31, 2018 and 2017, respectively:



	Three months ended March 31,
	2018		%		2017		%
Federal Government	$	13,023	10	%	$	19,731	14	%
State Governments	8,376		6	%	12,019		9	%
Local Government	23,230		17	%	23,827		17	%
Private Companies	92,214		67	%	83,180		60	%
Total contract revenues	$	136,843	100	%	$	138,757	100	%

In the three months ended March 31, 2018 and 2017, no single customer generated more than 10% 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.

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