PROPERTY, PLANT AND EQUIPMENT (Tables)

12 Months Ended

Dec. 31, 2015

Property Plant And Equipment [Abstract]

Summary of Property Plant Equipment by Asset Category

A summary of property, plant and equipment by asset category is as follows:

	December 31, 2015			December 31, 2014
	(In thousands)
Marine Vessels	$	1,391,556		$	1,241,105
Construction Equipment		478,175			496,557
Buildings		155,292			159,623
All other		143,580			155,083
Construction in Progress		298,749			435,447
Total Cost		2,467,352			2,487,815
Accumulated Depreciation		(856,493	)		(830,467	)
Net Book Value	$	1,610,859		$	1,657,348