Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income (loss)	$ (1,299)	$ 6,001
Adjustments to reconcile net income (loss) to net cash provided by (used by) operating activities:
Depreciation and amortization	17,348	8,494
Amortization of debt issuance costs	911	554
Joint venture net income in excess of cash received	(1,400)	(861)
Compensation expense from issuance of restricted stock and incentive stock options	1,001	783
Non-cash restructuring and impairment charges	1,505
Changes in operating assets and liabilities:
Accounts receivable	(20,318)	(24,006)
Inventories	(283)	2,386
Accounts payable	1,191	(7,696)
Other assets and liabilities	4,776	(3,073)
Net cash provided by (used by) operating activities	3,432	(17,418)
Cash flows from investing activities:
Acquisition of property, plant and equipment	(8,008)	(8,318)
Proceeds from disposals of property, plant and equipment	17	246
Capital contributions to joint venture		(1,372)
Net cash used by investing activities	(7,991)	(9,444)
Cash flows from financing activities:
Debt issue costs paid		(132)
Dividends Paid	(1,879)	(1,328)
Proceeds from long-term debt	11,000	9,109
Repayment of long-term debt	(1,437)
Proceeds (repayment) of short-term debt, net	(969)
Proceeds from issuance of stock and exercise of stock options		157
Principal payments on capital lease	(1,342)	(1,325)
Net cash provided by financing activities	5,373	6,481
Effect of exchange rate changes on cash flows	(822)	(176)
Net change in cash and cash equivalents	(8)	(20,557)
Cash and cash equivalents at beginning of year	15,087	37,317
Cash and cash equivalents at end of year	$ 15,079	$ 16,760