Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income	$ 12,955	$ 10,438
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	17,091	7,961
Amortization of debt issuance costs	1,146	216
Joint venture net income in excess of cash received	(1,882)
Share-based compensation expense	1,771	1,286
Changes in operating assets and liabilities:
Accounts receivable	(17,393)	(20,594)
Inventories	1,305	(4,736)
Accounts payable	(6,317)	6,939
Other assets and liabilities	(4,399)	4,191
Net cash provided by operating activities	4,277	5,701
Investing Activities:
Acquisition of property, plant and equipment	(16,166)	(5,812)
Cash paid to acquire business, net of cash received	(8,966)	(16,217)
Proceeds from disposals of property, plant and equipment	433
Investment in joint venture	(1,372)
Net cash used by investing activities	(26,071)	(22,029)
Financing Activities:
Proceeds/(Repayment) from short-term debt, net	1,453	(763)
Debt issue costs paid	(136)
Principal payments on capital lease	(2,618)	(73)
Proceeds from long-term debt, net	8,517	21,786
Dividends paid	(2,676)	(2,480)
Proceeds from issuance of stock and exercise of stock options	1,831	640
Net cash provided by financing activities	6,371	19,110
Effect of exchange rate changes on cash flows	(485)	(9)
Net Change in Cash	(15,908)	2,773
Cash at Beginning of Period	37,317	3,039
Cash at End of Period	$ 21,409	$ 5,812