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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
CURRENT ASSETS: |  |
Trade receivables, allowances | $ 1,451 | $ 1,297
STOCKHOLDERS’ EQUITY: |  |
Preferred stock shares authorized (in shares) | 5,000,000 | 5,000,000
Preferred stock shares issued (in shares) | 0 | 0
Common stock par value (in USD per share) |  |
Common stock shares authorized (in shares) | 100,000,000 | 100,000,000
Common stock shares issued (in shares) | 44,303,000 | 44,267,000
Common stock shares outstanding (in shares) | 44,303,000 | 44,267,000
Other |  |
OTHER ASSETS: |  |
Intangibles, accumulated amortization | $ 27,605 | $ 26,603
Developed technology |  |
OTHER ASSETS: |  |
Intangibles, accumulated amortization | $ 41,290 | $ 38,497

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