Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 27,656	$ 20,649
Adjustments to reconcile net income to cash flows:
Depreciation and amortization	10,685	11,849
Non-cash deferred revenue	(12,197)	(598)
Increase in inventory reserve	2,116	2,691
Stock based compensation	2,404	1,948
Deferred income tax provision/(benefit)	6,434	(10,838)
Losses in partially-owned affiliates	4	4,618
Other	(96)	610
Changes in assets and liabilities:
Trade receivables	29,618	2,911
Inventories	(46,499)	(16,462)
Prepaid expenses and other current assets	(1,151)	(3,669)
Accounts payable and other current liabilities	2,675	1,429
Deferred revenue	22,529	1,631
Other non-current assets and liabilities	(3,311)	(3,127)
Discontinued operations:
Net cash used in discontinued operations	(663)	(1,112)
Net cash provided by operating activities	40,204	12,530
Cash flows from investing activities:
Capital expenditures	(25,556)	(9,439)
Proceeds from sale of assets	2,102	1,279
Acquisition of business, net of cash acquired		(2,426)
Other	(56)	(1,404)
Net cash used in investing activities	(23,510)	(11,990)
Long-term debt activity:
Borrowings		18,750
Repayments		(24,000)
Proceeds from stock options exercised	1,895	1,718
Other	299
Net cash provided by/(used in) financing activities	2,194	(3,532)
Effect of exchange rate changes on cash and cash equivalents	(1,808)	(303)
Net increase/(decrease) in cash and cash equivalents	17,080	(3,295)
Cash and cash equivalents at beginning of period	45,518	22,745
Cash and cash equivalents at end of period	$ 62,598	$ 19,450