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Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Jul. 01, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 205,992 $ 38,103
Short-term investments 59,943 144,431
Accounts receivable, less reserves of $1,119 and $1,240 in 2012 and 2011, respectively 48,385 48,206
Inventories 25,113 28,098
Deferred income taxes 6,744 6,880
Prepaid expenses and other current assets 23,698 19,628
Total current assets 369,875 285,346
Long-term investments 124,748 174,906
Property, plant, and equipment, net 33,663 31,744
Deferred income taxes 17,049 15,919
Intangible assets, net 16,820 18,910
Goodwill 81,820 82,029
Other assets 2,771 3,027
Total assets 646,746 611,881
Current liabilities:    
Accounts payable 6,535 7,098
Accrued expenses 28,020 32,290
Accrued income taxes 3,779 1,259
Deferred revenue and customer deposits 11,753 13,458
Total current liabilities 50,087 54,105
Reserve for income taxes 5,066 4,796
Commitments and contingencies (Note 7)      
Shareholders' equity:    
Common stock, $.002 par value - Authorized: 140,000 shares, issued: 42,877 and 42,223 shares in 2012 and 2011, respectively 86 84
Additional paid-in capital 157,867 135,668
Retained earnings 459,645 434,581
Accumulated other comprehensive loss, net of tax (26,005) (17,353)
Total shareholders' equity 591,593 552,980
Total liabilities and shareholders' equity $ 646,746 $ 611,881