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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
CURRENT ASSETS:    
Cash and cash equivalents $ 331,092 $ 275,812
Investment securities 36,223 70,952 [1]
Cash, cash equivalents and investment securities 367,315 346,764 [1]
Accounts receivable, net of allowance for doubtful accounts of $1,114 at June 30, 2015 and $1,127 at December 31, 2014 43,428 39,051 [1]
Inventories 38,231 36,933 [1]
Prepaid income taxes 8,263 3,963 [1]
Prepaid expenses and other current assets 6,930 5,818 [1]
Deferred income taxes 6,885 4,683 [1]
Total current assets 471,052 437,212 [1]
PROPERTY AND EQUIPMENT, net 81,376 86,091 [1]
GOODWILL 1,478 1,478 [1]
INTANGIBLE ASSETS, net 6,415 7,063 [1]
DEFERRED INCOME TAXES 9,916 9,258 [1]
TOTAL ASSETS 570,237 541,102 [1]
CURRENT LIABILITIES:    
Accounts payable 12,587 11,378 [1]
Accrued liabilities 16,090 17,350 [1]
Total current liabilities 28,677 28,728 [1]
DEFERRED INCOME TAXES 2,278 1,376 [1]
INCOME TAX LIABILITY 1,222 2,746 [1]
COMMITMENTS AND CONTINGENCIES 0 0
STOCKHOLDERS' EQUITY:    
Convertible preferred stock, $1.00 par value Authorized-500 shares; Issued and outstanding - none 0 0 [1]
Common stock, $0.10 par value - Authorized-80,000 shares; Issued and outstanding 15,794 shares at June 30, 2015 and 15,595 shares at December 31, 2014 1,579 1,559 [1]
Additional paid-in capital 122,091 107,336 [1]
Retained earnings 432,167 408,911 [1]
Accumulated other comprehensive income (17,777) (9,554) [1]
Total stockholders' equity 538,060 508,252 [1]
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY 570,237 541,102 [1]
Allowance for doubtful accounts $ 1,114 $ 1,127
Convertible preferred stock, par value $ 1.00 $ 1.00
Convertible preferred stock, authorized shares 500,000 500,000
Convertible preferred stock, issued shares 0 0
Convertible preferred stock, outstanding shares 0 0
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 80,000,000 80,000,000
Common stock, shares issued 15,794,000 15,595,000
Common stock, shares outstanding 15,794,000 15,595,000
[1] December 31, 2014 balances were derived from audited consolidated financial statements.