Revenue (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table represents a disaggregation of the Company’s contract revenue by service line for the marine and concrete segments:

	Three months ended June 30,				Six months ended June 30,
	2019		2018		2019		2018
Marine Segment
Construction	$	57,181	$	52,860	$	90,817	$	95,235
Dredging	27,191		23,472		53,358		40,483
Specialty Services	4,651		4,366		6,335		7,771
Marine segment contract revenues	$	89,023	$	80,698	$	150,510	$	143,489
Concrete Segment
Structural	$	12,665	$	62,189	$	24,156	$	118,682
Light Commercial	64,275		16,740		134,371		34,112
Other	22		140		53		327
Concrete segment contract revenues	$	76,962	$	79,069	$	158,580	$	153,121
Total contract revenues	$	165,985	$	159,767	$	309,090	$	296,610