Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (Loss)	$ (7,431)	$ 8,217	$ 17,178
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	44,482	22,146	16,957
Amortization of debt issuance costs	1,754	844	547
Debt Issuance costs write-off	18,673	1,398
Joint venture net income in excess of cash received	(3,672)	(831)
(Gain) loss on disposals of property, plant and equipment	(687)		5
Allowance for doubtful accounts	208	208	177
Compensation expense from issuance of restricted stock and incentive stock options	3,704	2,595	2,239
Deferred income tax expense (benefit)	(16,878)	(1,333)	3,331
Non-cash restructuring and impairment charges	7,268	875
Changes in operating assets and liabilities:
Accounts receivable	(806)	(3,283)	(6,284)
Inventories	(1,843)	(9,836)	(7,232)
Other current assets	(944)	(1,624)	1,577
Other non-current assets	(1,501)	(4,828)	(802)
Accounts payable	(6,748)	9,497	2,577
Other liabilities	(2,269)	6,663	1,481
Net cash provided by operating activities	33,310	30,708	31,751
Cash flows from investing activities:
Acquisition of property, plant and equipment	(38,553)	(27,602)	(15,250)
Proceeds from disposals of property, plant and equipment	2,995	1,374
Cash paid to acquire businesses, net of cash received	(628,281)	(257,664)
Capital contributions to joint venture	(1,999)
Dividend received from joint venture		2,284
Net cash used by investing activities	(665,838)	(281,608)	(15,250)
Cash flows from financing activities:
Debt issue costs paid	(35,189)	(9,380)
Dividends Paid	(6,433)	(5,131)	(3,129)
Proceeds from long-term debt, net	885,000	344,750
Repayment of long-term debt, net	(401,438)	(40,880)	(33,715)
Proceeds (repayment) of short-term debt, net	(84)	359	676
Proceeds from shares issued	173,052
Proceeds from issuance of stock and exercise of stock options	2,041	1,671	4,013
Payment for acquisition of non-controlling interest		(2,528)
Principal payments on capital lease	(5,098)	(1,888)	(136)
Net cash provided by (used by) financing activities	611,851	286,973	(32,291)
Effect of exchange rate changes on cash flows	(1,553)	(1,795)	(161)
Net change in cash and cash equivalents	(22,230)	34,278	(15,951)
Cash and cash equivalents at beginning of year	37,317	3,039	18,990
Cash and cash equivalents at end of year	15,087	37,317	3,039
Supplemental schedule of non-cash investing and financing activities:
Compensation expense for stock awards, ($2,396 in 2015, $1,321 in 2014, and $802 in 2013) stock option expense ($915 in 2015, $1,274 in 2014, and $1,437 in 2013), performance based stock units ($393 in 2015) included in stockholders' equity	3,704	2,595	2,239
Shares issued in acquisition of Autocam		31,717
Cash paid for interest and income taxes:
Interest	20,146	8,307	1,777
Income taxes	$ 6,377	$ 5,747	$ 3,986