Accounts Payable and Accrued Expenses

3 Months Ended

Mar. 31, 2017

Payables And Accruals [Abstract]

Accounts Payable and Accrued Expenses

7. Accounts Payable and Accrued Expenses

	March 31, 2017		December 31, 2016
Trade accounts payable, including due to subcontractors	$	50,454	$	58,985
Compensation and related benefits		5,332		8,232
Current portion of earn-out liability		13,062		13,527
Accrued warranty		3,373		2,684
Other accrued expenses		9,575		12,182
	$	81,796	$	95,610

The activity in the Company’s current portion of earn-out liability and long term portion of earn-out liability was as follows for the three months ended March 31, 2017 and 2016:

(Table only in thousands)	Energy Segment			Environmental Segment		Total
Balance of earn-out at December 31, 2016	$	24,214		$	—	$	24,214
Fair value adjustment		3,897			—		3,897
Compensation expense adjustment		290			—		290
Foreign currency translation adjustment		200			—		200
Payment		(2,155	)		—		(2,155	)
Total earn-out liability as of March 31, 2017	$	26,446		$	—	$	26,446
Less: current portion of earn-out		(13,062	)		—		(13,062	)
Balance of long term portion of earn-out recorded in other liabilities at March 31, 2017	$	13,384		$	—	$	13,384

(Table only in thousands)	Energy Segment			Environmental Segment			Total
Balance of earn-out at December 31, 2015	$	29,304		$	3,367		$	32,671
Fair value adjustment		847			(500	)		347
Compensation expense adjustment		302			—			302
Foreign currency translation adjustment		288			—			288
Payment		—			(1,100	)		(1,100	)
Total earn-out liability as of March 31, 2016	$	30,741		$	1,767		$	32,508
Less: current portion of earn-out		(21,898	)		(667	)		(22,565	)
Balance of long term portion of earn-out recorded in other liabilities at March 31, 2016	$	8,843		$	1,100		$	9,943