CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
CURRENT ASSETS
Cash and cash equivalents	$ 19,526	$ 36,308
Accounts receivable, less allowance for doubtful accounts of $18,127 and $16,686 in 2011 and 2010, respectively	121,731	118,622
Inventories	102,666	98,290
Prepaid expenses, other assets, and income taxes receivable	19,419	17,814
Deferred income taxes	17,596	17,458
Total current assets	280,938	288,492
PROPERTY, PLANT AND EQUIPMENT
Land	794	839
Buildings	4,332	4,299
Furniture and fixtures	16,680	16,134
Machinery and equipment	54,469	52,905
Equipment leased to third parties under operating leases	33,496	31,294
Leasehold improvements	62,266	59,223
Computer and software	75,564	69,648
Total property, plant and equipment, gross	247,601	234,342
Less accumulated depreciation	143,489	131,038
Total property, plant and equipment, net	104,112	103,304
INTANGIBLE ASSETS
Goodwill	596,773	590,699
Patents and other intangible assets, net	55,802	56,379
Total intangible assets, net	652,575	647,078
OTHER ASSETS
Debt issuance costs, net	19,212	16,589
Other assets	6,135	6,016
Total other assets	25,347	22,605
TOTAL ASSETS	1,062,972	1,061,479
CURRENT LIABILITIES
Current portion of long-term debt	6,772	7,006
Accounts payable	21,633	29,243
Accrued expenses	24,017	20,796
Accrued interest payable	3,122	2,522
Accrued compensation related costs	23,818	43,126
Total current liabilities	79,362	102,693
LONG-TERM LIABILITIES
Long-term debt, less current portion	499,361	501,678
Deferred income taxes	64,447	64,447
Other liabilities	28,189	28,234
Total liabilities	671,359	697,052
COMMITMENTS AND CONTINGENCIES (Note H)
SHAREHOLDERS' EQUITY
Common stock, $.01 par value; 60,000,000 shares authorized, 34,911,015 shares and 34,352,163 shares issued at 2011 and 2010, respectively	349	344
Additional paid-in capital	262,956	257,419
Accumulated other comprehensive loss	(279)	(279)
Retained earnings	129,243	107,599
Shareholders' equity excluding treasury stock	392,269	365,083
Treasury stock at cost (141,154 shares)	(656)	(656)
Total shareholders' equity	391,613	364,427
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,062,972	$ 1,061,479