CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 448,166	$ 440,846
Accounts receivable, net	298,798	325,370
Inventories	351,232	336,051
Prepaid expenses and other current assets	117,964	104,285
Deferred income taxes, net	27,164	27,443
Total current assets	1,243,324	1,233,995
Property and equipment, net	191,876	186,269
Deferred income taxes, net	31,684	31,644
Goodwill	502,951	498,343
Intangible assets, net	158,559	164,440
Other assets	37,819	32,338
Assets, Total	2,166,213	2,147,029
Current liabilities:
Accounts payable	77,026	84,190
Deferred revenue	26,331	24,046
Accrued payroll and related liabilities	44,389	49,475
Accrued product warranties	13,592	13,370
Advance payments from customers	12,296	13,219
Accrued expenses	30,464	41,183
Accrued income taxes	206	2,161
Other current liabilities	3,322	3,886
Total current liabilities	207,626	231,530
Long-term debt	247,976	247,861
Deferred income taxes	16,981	17,237
Accrued income taxes	21,501	17,537
Pension and other long-term liabilities	57,222	53,835
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $0.01 par value, 10,000 shares authorized; no shares issued at March 31, 2012, and December 31, 2011	0	0
Common stock, $0.01 par value, 500,000 shares authorized, 154,087 and 154,969 shares issued at March 31, 2012, and December 31, 2011, respectively, and additional paid-in capital	333,541	352,157
Retained earnings	1,276,221	1,238,866
Accumulated other comprehensive earnings	5,145	(11,994)
Total shareholders’ equity	1,614,907	1,579,029
Total Liabilities and Shareholders' Equity	$ 2,166,213	$ 2,147,029