Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net income	$ 20,649	$ 13,442
Adjustments to reconcile net income to cash flows:
Depreciation and amortization	11,849	10,886
Non-cash deferred revenue	(598)	(10,539)
Gain on sale of assets	(4)	(4,137)
Increase in inventory reserve	2,691	951
Stock based compensation included in net income	1,948	1,242
Deferred income tax provision	(10,838)	914
Losses in partially-owned affiliates	4,618	1,149
Other	614	507
Changes in assets and liabilities:
Trade receivables	2,911	(290)
Inventories	(16,462)	(27,637)
Prepaid expenses and other current assets	(3,669)	(1,494)
Accounts payable and other current liabilities	1,429	8,284
Deferred revenue	1,631	10,335
Other non-current assets and liabilities	(3,127)	3,027
Discontinued operations:
Net cash used in discontinued operations	(1,112)	(461)
Net cash provided by operating activities	12,530	6,179
Cash flows from investing activities:
Capital expenditures	(9,439)	(35,375)
Proceeds from sale of assets	1,279	1,909
Acquisition of business, net of cash acquired	(2,426)	0
Advances to partially-owned affiliates	(1,404)	(441)
Net cash used in investing activities	(11,990)	(33,907)
Long-term debt activity:
Borrowings	18,750	37,500
Repayments	(24,000)	(14,500)
Proceeds from stock options exercised	1,718	1,428
Other	0	(302)
Net cash (used in)/provided by financing activities	(3,532)	24,126
Effect of exchange rate changes on cash and cash equivalents	(303)	(402)
Net decrease in cash and cash equivalents	(3,295)	(4,004)
Cash and cash equivalents at beginning of period	22,745	23,551
Cash and cash equivalents at end of period	$ 19,450	$ 19,547