CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 4,902	$ 9,860
Accounts receivable, less allowance for doubtful accounts of $11,268 and $10,022 in 2014 and 2013, respectively	205,325	185,769
Inventories	158,957	141,518
Prepaid expenses, other assets, and income taxes receivable	21,147	15,519
Deferred income taxes	30,381	30,298
Total current assets	420,712	382,964
PROPERTY, PLANT AND EQUIPMENT
Land	794	794
Buildings	26,466	15,397
Furniture and fixtures	17,034	15,855
Machinery and equipment	64,301	61,707
Equipment leased to third parties under operating leases	36,144	34,142
Leasehold improvements	90,469	85,176
Computers	36,066	33,216
Software	63,974	55,734
Total property, plant and equipment, gross	335,248	302,021
Less accumulated depreciation	192,598	175,223
Total property, plant and equipment, net	142,650	126,798
INTANGIBLE ASSETS
Goodwill	715,656	681,547
Other intangible assets, less accumulated amortization of $31,018 and $27,375 in 2014 and 2013, respectively	62,517	58,021
Total intangible assets, net	778,173	739,568
OTHER ASSETS
Debt issuance costs, net	7,703	8,564
Other assets	15,321	13,766
Total other assets	23,024	22,330
TOTAL ASSETS	1,364,559	1,271,660
CURRENT LIABILITIES
Current portion of long-term debt	23,638	15,998
Accounts payable	31,815	36,729
Accrued expenses and other current liabilities	26,339	24,923
Accrued interest payable	2,049	1,898
Accrued compensation related costs	23,051	36,331
Total current liabilities	106,892	115,879
LONG-TERM LIABILITIES
Long-term debt, less current portion	516,251	452,261
Deferred income taxes	76,784	76,545
Other liabilities	58,589	46,755
Total liabilities	758,516	691,440
COMMITMENTS AND CONTINGENCIES (Note I)
SHAREHOLDERS' EQUITY
Common stock, $.01 par value; 60,000,000 shares authorized, 36,373,545 and 36,113,202 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	364	361
Additional paid-in capital	299,927	292,722
Accumulated other comprehensive loss	(1,020)	(1,020)
Retained earnings	307,428	288,813
Shareholders' equity, excluding treasury stock	606,699	580,876
Treasury stock at cost (141,154 shares at 2014 and 2013)	(656)	(656)
Total shareholders' equity	606,043	580,220
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,364,559	$ 1,271,660