CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 264,804	$ 355,451
Short-Term Investments	32,232	0
Trade receivables, net	91,504	100,987
Unbilled receivables	144,428	102,597
Inventories, net	146,004	145,724
Prepaids expenses	19,874	9,624
Other current assets	34,359	31,166
Assets held for sale	19,383	0
Total current assets	752,588	745,549
Operating lease right of use assets	4,872	5,258
Property, plant and equipment, net	181,270	216,200
Deferred income taxes	4,488	11,381
Intangible assets	23,348	26,446
Other assets	5,949	5,592
Total assets	972,515	1,010,426
Current liabilities:
Accounts payable	43,019	35,232
Accrued income taxes	4,868	4,102
Contract liabilities	8,020	9,746
Accrued compensation	5,796	6,291
Operating lease liabilities	1,054	1,046
Other accrued liabilities	24,798	37,246
Total current liabilities	87,555	93,663
Deferred income taxes	3,756	3,925
Income tax payable	823	9,627
Operating lease liabilities, long-term	3,807	4,170
Other long-term liabilities	1,658	1,933
Total liabilities	97,599	113,318
Contingencies (Note 14)
Stockholders' equity:
Preferred stock: 10,000,000 shares authorized at $0.01 par value (none issued)	0	0
Common stock:
100,000,000 shares authorized at $0.01 par value, 34,157,057 and 34,774,156 shares issued and outstanding at December 31, 2022 and December 31, 2021	343	352
Additional paid-in capital	90,450	80,254
Retained earnings	952,732	973,087
Accumulated other comprehensive losses	(168,609)	(156,585)
Total stockholders' equity	874,916	897,108
Total liabilities and stockholders' equity	$ 972,515	$ 1,010,426