Note 5 - Disaggregation of Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Disaggregation of Revenue [Table Text Block]

Years Ended December 31,
2019	Transportation		Water		Specialty		Materials		Total
California	$	581,074	$	25,005	$	187,556	$	198,465	$	992,100
Federal		688		1,171		83,844		—		85,703
Heavy Civil		671,923		13,215		2,206		—		687,344
Midwest		100,235		39		153,548		—		253,822
Northwest		538,229		5,964		211,094		140,621		895,908
Water and Mineral Services		—		423,336		89,289		18,104		530,729
Total	$	1,892,149	$	468,730	$	727,537	$	357,190	$	3,445,606

2018 (As Restated)	Transportation		Water		Specialty		Materials		Total
California	$	607,737	$	52,757	$	143,471	$	213,673	$	1,017,638
Federal		683		2,116		41,471		—		44,270
Heavy Civil		788,722		19,472		—		—		808,194
Midwest		84,523		1,930		222,565		—		309,018
Northwest		465,085		3,882		159,516		138,924		767,407
Water and Mineral Services		—		265,704		58,643		16,157		340,504
Total	$	1,946,750	$	345,861	$	625,666	$	368,754	$	3,287,031

2017 (As Restated)	Transportation		Water		Specialty		Materials		Total
California	$	470,996	$	39,071	$	160,572	$	178,048	$	848,687
Federal		31,406		1,884		5,196		—		38,486
Heavy Civil		738,576		22,427		—		—		761,003
Midwest		60,007		7,004		349,948		—		416,959
Northwest		611,021		623		104,793		114,728		831,165
Water and Mineral Services		—		61,964		110		—		62,074
Total	$	1,912,006	$	132,973	$	620,619	$	292,776	$	2,958,374