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Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Current Assets    
Cash and cash equivalents $ 94,173 $ 86,433
Short-term investments 5,912 16,129
Accounts receivable, less allowance for doubtful accounts of $— at September 30, 2018 and December 31, 2017 101,865 144,150
Other receivables 30,084 26,578
Inventory, net 106,060 122,542
Prepaid expenses and other current assets 10,428 17,282
Total Current Assets 348,522 413,114
Property, plant and equipment, net 81,457 85,079
Deferred tax assets, net 39,595 23,428
Goodwill 3,492 3,492
Other assets 31,523 13,725
Long-term investments 144,241 130,256
Total Assets 648,830 669,094
Current Liabilities    
Accounts payable 65,032 60,632
Unearned revenue 17,004 13,070
Accrued expenses 14,548 13,232
Accrued wages and benefits 12,604 15,948
Income tax payable 14,340 3,936
Total Current Liabilities 123,528 106,818
Non-current unearned revenue 3,846 4,556
Other non-current liabilities 32,255 34,209
Bonds payable 25,600 25,600
Total Liabilities 185,229 171,183
Commitments and contingencies (see Note 15)
Stockholders’ Equity    
Common stock, par value $0.01 per share; 200,000 shares authorized; 79,652 shares issued and 47,711 shares outstanding at September 30, 2018 and 79,652 shares issued and 48,485 shares outstanding at December 31, 2017 797 797
Additional paid-in capital 265,757 260,515
Accumulated other comprehensive loss (9,564) (3,295)
Retained earnings 900,324 922,178
Less treasury stock at cost: 31,941 and 31,167 shares at September 30, 2018 and December 31, 2017, respectively (693,713) (682,284)
Total Stockholders’ Equity 463,601 497,911
Total Liabilities and Stockholders’ Equity $ 648,830 $ 669,094