CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 18,654	$ 22,241
Accounts receivable, net	41,738	41,012
Inventories, net	43,139	49,855
Prepaid expenses and other current assets	6,069	5,953
Deferred income tax assets	2,874	2,991
Total current assets	112,474	122,052
Property and equipment, net	29,515	30,403
Goodwill	181,390	180,838
Intangibles, net	40,744	46,856
Other assets	2,012	1,978
Total assets	366,135	382,127
Current liabilities:
Accounts payable	14,171	15,237
Accrued expenses	35,952	38,490
Deferred revenue	1,264	1,361
Current portion of long-term debt	4,984	1,700
Total current liabilities	56,371	56,788
Long-term debt, less current portion	43,784	39,967
Other long-term liabilities	11,130	13,485
Deferred income tax liabilities	2,277	2,468
Redeemable preferred stock, $0.0001 par value; 20,000 authorized at September 30, 2013 and December 31, 2012; 3,319 shares issued and outstanding at both September 30, 2013 and December 31, 2012	23,603	23,603
Stockholders' equity:
Common stock, $0.0001 par value; 200,000 authorized at September 30, 2013 and December 31, 2012; 97,453 and 96,703 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	10	10
Treasury stock, 19 shares	(97)	(97)
Additional paid-in capital	402,250	399,246
Accumulated other comprehensive (loss) income	2,082	112
Accumulated deficit	(175,275)	(153,455)
Total stockholders' equity	228,970	245,816
Total liabilities and stockholders' equity	$ 366,135	$ 382,127