CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
CURRENT ASSETS
Cash and cash equivalents	$ 31,437	$ 36,308
Accounts receivable, less allowance for doubtful accounts of $19,968 and $16,686 in 2011 and 2010, respectively	127,231	118,622
Inventories	110,597	98,290
Prepaid expenses, other assets, and income taxes receivable	14,691	17,814
Deferred income taxes	18,502	17,458
Total current assets	302,458	288,492
PROPERTY, PLANT AND EQUIPMENT
Land	794	839
Buildings	4,332	4,299
Furniture and fixtures	17,070	16,134
Machinery and equipment	55,296	52,905
Equipment leased to third parties under operating leases	34,835	31,294
Leasehold improvements	63,789	59,223
Computer and software	78,231	69,648
Total property, plant and equipment, gross	254,347	234,342
Less accumulated depreciation	149,832	131,038
Total property, plant and equipment, net	104,515	103,304
INTANGIBLE ASSETS
Goodwill	601,979	590,699
Patents and other intangible assets, net	55,274	56,379
Total intangible assets, net	657,253	647,078
OTHER ASSETS
Debt issuance costs, net	18,348	16,589
Other assets	6,073	6,016
Total other assets	24,421	22,605
TOTAL ASSETS	1,088,647	1,061,479
CURRENT LIABILITIES
Current portion of long-term debt	8,030	7,006
Accounts payable	24,011	29,243
Accrued expenses	23,554	20,796
Accrued interest payable	6,559	2,522
Accrued compensation related costs	23,382	43,126
Total current liabilities	85,536	102,693
LONG-TERM LIABILITIES
Long-term debt, less current portion	499,661	501,678
Deferred income taxes	63,484	64,447
Other liabilities	30,919	28,234
Total liabilities	679,600	697,052
COMMITMENTS AND CONTINGENCIES (Note H)
SHAREHOLDERS' EQUITY
Common stock, $.01 par value; 60,000,000 shares authorized, 34,927,515 shares and 34,352,163 shares issued and outstanding at 2011 and 2010, respectively	349	344
Additional paid-in capital	264,978	257,419
Accumulated other comprehensive loss	(279)	(279)
Retained earnings	144,655	107,599
Shareholders' equity excluding treasury stock	409,703	365,083
Treasury stock at cost (141,154 shares)	(656)	(656)
Total shareholders' equity	409,047	364,427
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,088,647	$ 1,061,479