CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income	$ 62,303	$ 10,968	$ 9,647
Adjustments to reconcile net income to cash flows:
Depreciation and amortization	21,775	23,120	21,828
Increase in inventory reserve	2,790	1,637	1,719
Allowance for doubtful accounts	193	(103)	479
Stock based compensation included in net income	1,802	1,565	1,822
Deferred income tax provision	(40,712)	(721)	(1,165)
Restructuring charges	0	0	870
Equity in losses of partially-owned affiliates	1,766	1,621	286
Other	343	390	297
Changes in assets and liabilities:
Trade receivables	(6,310)	2,066	(7,148)
Inventories	(10,295)	(3,523)	(4,925)
Prepaid expenses and other current assets	(188)	729	1,357
Accounts payable and other current liabilities	3,134	6,247	(2,316)
Deferred revenue	10,510	524	(104)
Other non-current assets and liabilities	182	(5,597)	770
Discontinued operations:
Net cash used in discontinued operations	(3,747)	(601)	(133)
Net cash provided by operating activities	43,546	38,322	23,284
Cash flows from investing activities:
Capital expenditures	(18,156)	(15,008)	(12,637)
Advances to partially-owned affiliates	(2,047)	0	0
Acquisition of business and equity investment, net of cash acquired	0	(500)	(25,249)
Capital invested in partially-owned affiliate	0	0	(1,148)
Other investing activities	21	20	(18)
Net cash used in investing activities	(20,182)	(15,488)	(39,052)
Long-term debt activity (including current portion):
Borrowings	5,500	105,800	33,200
Repayments	(39,500)	(123,700)	(38,100)
Debt issuance costs	0	(1,541)	0
Proceeds from stock options exercised	1,355	145	0
Other financing activities	(22)	(340)	(54)
Net cash used in financing activities	(32,667)	(19,636)	(4,954)
Effect of exchange rate changes on cash and cash equivalents	933	(891)	(2,029)
Net (decrease)/increase in cash and cash equivalents	(8,370)	2,307	(22,751)
Cash and cash equivalents at beginning of year	31,921	29,614	52,365
Cash and cash equivalents at end of year	23,551	31,921	29,614
Supplemental disclosure:
Interest paid, net of capitalized interest	2,556	2,258	4,328
Income taxes paid, net of refunds received	$ 5,068	$ 8,520	$ 3,579