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Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Payables And Accruals [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following at December 31, 2018 and December 31, 2019 (in thousands):

		2018				2019
Salaries and wages		$	50,991			$	46,685
Employee benefits			214,008				259,081
Self-insurance liability			29,682				29,997
Project cost accruals			183,362				217,729
Other accrued expenses			81,657				86,371
Total accrued expenses and other current liabilities		$	559,700			$	639,863

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- Definition

Tabular disclosure of the (a) 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 (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.

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