Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue	$ 446,176	$ 608,344
Cost of services and products	401,321	510,864
Gross Margin	44,855	97,480
Selling, general and administrative expense	45,005	49,381
Income from Operations	(150)	48,099
Interest income	1,337	295
Interest expense	(6,268)	(6,392)
Equity earnings (losses) of unconsolidated affiliates	(980)	526
Other income (expense), net	(2,556)	(5,988)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(8,617)	36,540
Provision for income taxes	(1,083)	11,437
Net Income	$ (7,534)	$ 25,103
Cash Dividends declared per Share	$ 0.15	$ 0.27
Basic Earnings per Share	(0.08)	0.26
Diluted Earnings per Share	$ (0.08)	$ 0.26