Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Noncontrolling Interests
Revenue	$ 908,216	$ 789,929	$ 1,651,459	$ 1,451,487
Net income attributable to noncontrolling interests	3	37	6	1,026
Cash	155,670		155,670		$ 120,286
Accounts receivable	468,949		468,949		404,911
Contract assets	376,733		376,733		344,806
Accounts payable	256,980		256,980		235,972
Contract liabilities	$ 223,077		$ 223,077		192,397
Carlsbad
Noncontrolling Interests
Ownership interest (as a percent)	50.00%		50.00%
Carlsbad
Noncontrolling Interests
Revenue		227		4,251
Net income attributable to noncontrolling interests	$ 3	$ 37	$ 6	1,026
Non-controlling interest distribution	1,000			3,500
Capital contributions			1,000	$ 3,500
Cash	474		474		2,124
Due to Primoris	9		9
Accounts payable					38
Contract liabilities	$ 391		$ 391		$ 425

The amount of distributions made to noncontrolling interest.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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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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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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