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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
CURRENT ASSETS:    
Cash and cash equivalents $ 311,993 $ 630,012
Short-term investments 351,194 99,996
Accounts receivable 107,639 82,261
Inventory 134,160 91,591
Other current assets 20,948 20,746
Total current assets 925,934 924,606
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $92,461 and $72,493 128,832 102,113
ACQUIRED TECHNOLOGY, net of accumulated amortization of $173,635 and $153,050 49,668 70,253
OTHER INTANGIBLE ASSETS, net of accumulated amortization of $7,565 and $6,155 9,711 10,685
GOODWILL 15,535 15,535
INVESTMENTS 168,076 5,000
DEFERRED INCOME TAXES 33,453 37,695
OTHER ASSETS 135,710 103,341
TOTAL ASSETS 1,466,919 1,269,228
CURRENT LIABILITIES:    
Accounts payable 14,955 13,801
Accrued expenses 45,474 41,404
Deferred revenue 120,864 105,215
Other current liabilities 6,645 4,540
Total current liabilities 187,938 164,960
DEFERRED REVENUE 36,217 57,086
RETIREMENT PLAN BENEFIT LIABILITY 66,773 78,527
OTHER LIABILITIES 76,077 55,941
Total liabilities 367,005 356,514
COMMITMENTS AND CONTINGENCIES (Note 18)
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, 200,000,000 shares authorized, 49,065,924 and 49,013,476 shares issued, and 47,700,276 and 47,647,828 shares outstanding at December 31, 2021 and December 31, 2020, respectively 491 490
Additional paid-in capital 658,728 635,595
Retained earnings 500,212 353,930
Accumulated other comprehensive loss (18,235) (36,019)
Treasury stock, at cost (1,365,648 shares at December 31, 2021 and December 31, 2020) (41,284) (41,284)
Total shareholders’ equity 1,099,914 912,714
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 1,466,919 $ 1,269,228