CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 55,624	$ 9,860
Net accounts receivable, less allowance for doubtful accounts of $10,313 and $10,022 in 2014 and 2013, respectively	183,548	185,769
Inventories	153,952	141,518
Prepaid expenses, other assets, and income taxes receivable	27,678	15,519
Deferred income taxes	30,366	30,298
Total current assets	451,168	382,964
PROPERTY, PLANT AND EQUIPMENT
Land	794	794
Buildings	16,517	15,397
Furniture and fixtures	16,581	15,855
Machinery and equipment	63,379	61,707
Equipment leased to third parties under operating leases	34,198	34,142
Leasehold improvements	88,576	85,176
Computer and software	94,561	88,950
Total property, plant and equipment, gross	314,606	302,021
Less accumulated depreciation and amortization	183,187	175,223
Total property, plant and equipment, net	131,419	126,798
INTANGIBLE ASSETS
Goodwill	702,455	681,547
Other intangible assets, less accumulated amortization of $29,267 and $27,375 in 2014 and 2013, respectively	61,367	58,021
Total intangible assets, net	763,822	739,568
OTHER ASSETS
Debt issuance costs, net	8,134	8,564
Other assets	15,142	13,766
Total other assets	23,276	22,330
TOTAL ASSETS	1,369,685	1,271,660
CURRENT LIABILITIES
Current portion of long-term debt	20,869	15,998
Accounts payable	41,789	36,729
Accrued expenses and other current liabilities	22,734	24,923
Accrued interest payable	5,534	1,898
Accrued compensation related costs	21,605	36,331
Total current liabilities	112,531	115,879
LONG-TERM LIABILITIES
Long-term debt, less current portion	541,066	452,261
Deferred income taxes	76,971	76,545
Other liabilities	48,615	46,755
Total liabilities	779,183	691,440
COMMITMENTS AND CONTINGENCIES (Note G)
SHAREHOLDERS' EQUITY
Common stock, $.01 par value; 60,000,000 shares authorized, 36,346,814 and 36,113,202 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	363	361
Additional paid-in capital	297,006	292,722
Accumulated other comprehensive loss	(1,020)	(1,020)
Retained earnings	294,809	288,813
Shareholders' equity, excluding treasury stock	591,158	580,876
Treasury stock at cost (141,154 shares)	(656)	(656)
Total shareholders' equity	590,502	580,220
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,369,685	$ 1,271,660