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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 54,158 | $ 38,103
Short-term investments | 101,870 | 144,431
Accounts receivable, less reserves of $1,130 and $1,240 in 2012 and 2011, respectively | 44,761 | 48,206
Inventories | 24,995 | 28,098
Deferred income taxes | 6,785 | 6,880
Prepaid expenses and other current assets | 17,657 | 19,628
Total current assets | 250,226 | 285,346
Long-term investments | 259,910 | 174,906
Property, plant, and equipment, net | 34,344 | 31,744
Deferred income taxes | 17,378 | 15,919
Intangible assets, net | 15,783 | 18,910
Goodwill | 81,689 | 82,029
Other assets | 2,785 | 3,027
Total assets | 662,115 | 611,881
Current liabilities: |  |
Accounts payable | 7,567 | 7,098
Accrued expenses | 28,918 | 32,290
Accrued income taxes | 3,583 | 1,259
Deferred revenue and customer deposits | 11,755 | 13,458
Total current liabilities | 51,823 | 54,105
Reserve for income taxes | 4,890 | 4,796
Commitments and contingencies (Note 7) |  |
Shareholders' equity: |  |
Common stock, $.002 par value - Authorized: 140,000 shares, issued: 42,961 and 42,223 shares in 2012 and 2011, respectively | 86 | 84
Additional paid-in capital | 161,296 | 135,668
Retained earnings | 472,729 | 434,581
Accumulated other comprehensive loss, net of tax | (28,709) | (17,353)
Total shareholders' equity | 605,402 | 552,980
Total liabilities and shareholders' equity | $ 662,115 | $ 611,881

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