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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
CURRENT ASSETS:    
Cash and cash equivalents $ 132,840 $ 139,365
Short-term investments 287,446 188,644
Accounts receivable 52,355 24,994
Inventory 36,265 17,314
Deferred income taxes   8,661
Other current assets 10,276 6,392
Total current assets 519,182 385,370
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $36,368 and $32,167 56,450 27,203
ACQUIRED TECHNOLOGY, net of accumulated amortization of $91,312 and $70,714 131,529 152,127
OTHER INTANGIBLE ASSETS, net of accumulated amortization of $2,000 and $615 14,840 16,225
GOODWILL 15,535 15,535
INVESTMENTS 14,794 14,960
DEFERRED INCOME TAXES 27,022 15,832
OTHER ASSETS 604 307
TOTAL ASSETS 779,956 627,559
CURRENT LIABILITIES:    
Accounts payable 13,774 8,112
Accrued expenses 35,019 19,845
Deferred revenue 14,981 10,282
Other current liabilities 50 1,967
Total current liabilities 63,824 40,206
DEFERRED REVENUE 23,902 31,322
RETIREMENT PLAN BENEFIT LIABILITY 33,176 27,563
Total liabilities 120,902 99,091
COMMITMENTS AND CONTINGENCIES (Note 16)
SHAREHOLDERS' EQUITY:    
Preferred Stock, par value $0.01 per share, 5,000,000 shares authorized, 200,000 shares of Series A Nonconvertible Preferred Stock issued and outstanding (liquidation value of $7.50 per share or $1,500) 2 2
Common Stock, par value $0.01 per share, 100,000,000 shares authorized, 48,476,034 and 48,270,990 shares issued, and 47,118,171 and 46,913,127 shares outstanding at December 31, 2017 and December 31, 2016, respectively 485 483
Additional paid-in capital 611,063 604,364
Retained earnings (accumulated deficit) 99,126 (25,557)
Accumulated other comprehensive loss (11,464) (10,666)
Treasury stock, at cost (1,357,863 shares at December 31, 2017 and December 31, 2016) (40,158) (40,158)
Total shareholders’ equity 659,054 528,468
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 779,956 $ 627,559