Revenue (Tables)

9 Months Ended

Sep. 30, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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

	Three Months Ended September 30, 2018		Nine Months Ended September 30, 2018
Marine Segment
Construction	$	46,113	$	141,348
Dredging	13,053		53,536
Specialty Services	4,313		12,083
Marine segment contract revenues	$	63,479	$	206,967
Concrete Segment
Light Commercial	$	48,458	$	167,140
Structural	13,054		47,166
Other	82		409
Concrete segment contract revenues	$	61,594	$	214,715
Total contract revenues	$	125,073	$	421,682