Condensed Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income (loss)	$ (25,843)	$ 27,724
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	11,324	10,345
Amortization of debt costs	643	117
Provision for doubtful accounts	4,545	3,843
Deferred income taxes	(2,680)	(2,279)
Share-based compensation	3,997	5,448
Provision for inventory obsolescence	2,116	3,933
Gain on interest rate swap		(1,254)
Gain on sale of vascular operations (Note 16)		(12,339)
Tax benefit on non-qualified stock options	(1,004)	(1,792)
Other	335	743
Change in operating assets and liabilities, net of effect of sale of vascular operations and acquisitions:
Trade accounts receivable	(5,353)	(9,047)
Inventories	(12,423)	879
Prepaid expenses and other current assets	3,378	(4,005)
Trade accounts payable	(2,312)	2,898
Charges related to U.S. Government inquiries	46,000
Other current liabilities	680	(5,666)
Net cash provided by operating activities	23,403	19,548
Cash flows from investing activities:
Capital expenditures for property, plant and equipment	(10,963)	(11,668)
Capital expenditures for intangible assets	(335)	(213)
Payment made in connection with acquisition	(5,250)
Net proceeds from sale of vascular operations		24,215
Net cash (used in) provided by investing activities	(16,548)	12,334
Cash flows from financing activities:
Net proceeds from issuance of common shares	13,453	5,996
Repayments of long-term debt	(2,500)	(25,656)
Payment of refinancing fees	(758)
Proceeds from (repayment of) bank borrowings, net	(1,653)	1,023
Change in restricted cash	(2,285)	(7,757)
Cash payment for purchase of minority interest in subsidiary	(517)
Tax benefit on non-qualified stock options	1,004	1,792
Net cash provided by (used in) financing activities	6,744	(24,602)
Effect of exchange rate changes on cash	325	(914)
Net increase in cash and cash equivalents	13,924	6,366
Cash and cash equivalents at the beginning of the period	13,561	13,328
Cash and cash equivalents at the end of the period	$ 27,485	$ 19,694