Accounts Payable and Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2017

Accounts Payable and Accrued Liabilities

Summary of accrued expenses and other current liabilities

	September 30,		December 31,
	2017		2016
Payroll and related employee benefits	$	52,755	$	43,768
Insurance, including self-insurance reserves		46,835		42,546
Reserve for estimated losses on uncompleted contracts		12,562		12,801
Corporate income taxes and other taxes		8,553		3,368
Accrued administrative cost		1,719		2,741
Other		3,202		2,782
	$	125,626	$	108,006