Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 982	$ 11,168
Adjustments to reconcile net income to cash flows:
Depreciation and amortization	5,883	5,333
Non cash deferred revenue	(81)	(9,957)
Gain on sale of assets	(6)	(4,603)
Increase in inventory reserve	923	1,284
Stock based compensation included in net income	914	493
Deferred income tax (benefit)/provision	(572)	1,918
Equity in losses of partially-owned affiliates	346	481
Other	65	266
Changes in assets and liabilities:
Trade receivables	32,048	1,547
Inventories	(9,951)	(5,181)
Prepaid expenses and other current assets	(2,042)	(1,198)
Accounts payable and other current liabilities	(3,691)	(2,052)
Deferred revenue	1,074	10,442
Other non-current assets and liabilities	(441)	4,696
Discontinued operations:
Net cash used in discontinued operations	(869)	(45)
Net cash provided by operating activities	24,582	14,592
Cash flows from investing activities:
Capital expenditures	(7,586)	(16,521)
Proceeds from sale of assets	470	1,909
Advances to partially-owned affiliates	(472)	(441)
Net cash used in investing activities	(7,588)	(15,053)
Cash flows from financing activities:
Borrowings	1,500	12,500
Repayments	(20,750)	(3,500)
Proceeds from stock options exercised	1,316	619
Other	0	(302)
Net cash (used in)/provided by financing activities	(17,934)	9,317
Effect of exchange rate changes on cash and cash equivalents	(25)	(530)
Net (decrease)/increase in cash and cash equivalents	(965)	8,326
Cash and cash equivalents at beginning of period	22,745	23,551
Cash and cash equivalents at end of period	$ 21,780	$ 31,877