CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 37,391	$ 70,586
Short-term investments	230,968	202,024
Accounts receivable	22,107	15,657
Inventory	29,834	10,595
Deferred income taxes	17,363	21,563
Other current assets	13,335	6,623
Total current assets	350,998	327,048
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $24,235 and $22,756	17,860	14,893
ACQUIRED TECHNOLOGY, net of accumulated amortization of $41,089 and $32,841	85,763	94,011
INVESTMENTS	2,606	7,417
DEFERRED INCOME TAXES	14,435	19,143
OTHER ASSETS	508	242
TOTAL ASSETS	472,170	462,754
CURRENT LIABILITIES:
Accounts payable	7,039	5,256
Accrued expenses	10,320	16,039
Deferred revenue	2,036	1,910
Other current liabilities	493	24
Total current liabilities	19,888	23,229
DEFERRED REVENUE	2,245	2,403
RETIREMENT PLAN BENEFIT LIABILITY	10,257	9,436
Total liabilities	32,390	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, 46,944,116 and 46,825,168 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively	469	468
Additional paid-in capital	577,971	572,401
Accumulated deficit	(101,431)	(130,159)
Accumulated other comprehensive loss	(4,073)	(4,368)
Treasury stock, at cost (1,115,829 and 401,501 shares at September 30, 2014 and December 31, 2013, respectively)	(33,158)	(10,658)
Total shareholders’ equity	439,780	427,686
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 472,170	$ 462,754