Quarterly Financial Information

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

13. Quarterly Financial Information (Unaudited)

(in thousands, except per share amounts and market price per share)

	Quarter Ended
	March 31			June 30		September30		December31
Year ended December 31, 2016
Revenues	$	190,968		$	203,417	$	225,103	$	221,098
Cost of revenues		180,581			161,164		175,544		177,761
Gross Margin		10,387			42,253		49,559		43,337
Net (loss) income		(8,003	)		8,522		10,233		8,047
Basic (loss) earnings per share		(1.11	)		1.18		1.41		1.11
Diluted (loss) earnings per share		(1.11	)		1.16		1.38		1.08
Year ended December 31, 2015
Revenues	$	166,400		$	181,959	$	198,725	$	193,757
Cost of revenues		157,469			145,481		155,835		152,600
Gross Margin		8,931			36,478		42,890		41,157
Net (loss) income		(5,828	)		8,902		10,973		11,447
Basic (loss) earnings per share		(0.82	)		1.24		1.52		1.59
Diluted (loss) earnings per share		(0.82	)		1.21		1.49		1.55