Disaggregation of Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Disaggregation Of Revenue [Abstract]

Schedule of Disaggregation of Revenue

The following tables present our disaggregated revenue (in thousands):  

Years Ended December 31,

2018	Transportation		Water		Specialty		Materials		Total
California	$	607,737	$	52,757	$	143,471	$	213,673	$	1,017,638
Northwest		465,085		3,882		159,517		138,924		767,408
Heavy Civil		818,715		19,945		—		—		838,660
Federal		683		2,116		41,471		—		44,270
Midwest		84,523		1,930		223,517		—		309,970
Water and Mineral Services		—		257,620		58,643		24,205		340,468
Total	$	1,976,743	$	338,250	$	626,619	$	376,802	$	3,318,414
2017	Transportation		Water		Specialty		Materials		Total
California	$	470,996	$	39,071	$	160,572	$	178,048	$	848,687
Northwest		611,021		623		104,793		114,728		831,165
Heavy Civil		773,990		23,153		—		—		797,143
Federal		31,406		1,884		5,196		—		38,486
Midwest		60,007		7,004		345,147		—		412,158
Water and Mineral Services		—		61,964		110		—		62,074
Total	$	1,947,420	$	133,699	$	615,818	$	292,776	$	2,989,713
2016	Transportation		Water		Specialty		Materials		Total
California	$	378,838	$	40,250	$	185,079	$	148,778	$	752,945
Northwest		486,037		9,853		94,379		112,448		702,717
Heavy Civil		688,527		16,279		—		—		704,806
Federal		5,149		1,196		4,470		—		10,815
Midwest		68,235		17,316		181,395		—		266,946
Water and Mineral Services		—		76,388		—		—		76,388
Total	$	1,626,786	$	161,282	$	465,323	$	261,226	$	2,514,617