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CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
CURRENT ASSETS:    
Cash and cash equivalents $ 75,554 $ 70,586
Short-term investments 215,331 202,024
Accounts receivable 20,500 15,657
Inventory 20,664 10,595
Deferred income taxes 18,288 21,563
Other current assets 13,074 6,623
Total current assets 363,411 327,048
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $23,693 and $22,756 16,973 14,893
ACQUIRED TECHNOLOGY, net of accumulated amortization of $38,339 and $32,841 88,513 94,011
INVESTMENTS 2,522 7,417
DEFERRED INCOME TAXES 15,456 19,143
OTHER ASSETS 494 242
TOTAL ASSETS 487,369 462,754
CURRENT LIABILITIES:    
Accounts payable 12,227 5,256
Accrued expenses 9,977 16,039
Deferred revenue 3,095 1,910
Other current liabilities 441 24
Total current liabilities 25,740 23,229
DEFERRED REVENUE 3,241 2,403
RETIREMENT PLAN BENEFIT LIABILITY 9,984 9,436
Total liabilities 38,965 35,068
COMMITMENTS AND CONTINGENCIES (Note 12)     
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, 46,899,849 and 46,825,168 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively 469 468
Additional paid-in capital 575,454 572,401
Accumulated deficit (105,716) (130,159)
Accumulated other comprehensive loss (4,147) (4,368)
Treasury stock, at cost (636,301 and 401,501 shares at June 30, 2014 and December 31, 2013, respectively) (17,658) (10,658)
Total shareholders’ equity 448,404 427,686
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 487,369 $ 462,754