Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Assets
Cash and cash equivalents	$ 210,893	$ 207,430
Restricted cash	797	0
Accounts receivable, net of allowance for doubtful accounts of $307 and $514, respectively	461,905	491,957
Contract assets	194,134	183,613
Inventories	778,137	727,749
Prepaid expenses and other assets	45,000	41,392
Income taxes receivable	6	8
Total current assets	1,690,872	1,652,149
Property, plant and equipment, net	221,016	211,478
Operating lease right-of-use assets	95,156	93,081
Goodwill	192,116	192,116
Deferred income taxes	12,861	12,235
Other assets, net	66,627	66,272
Total assets	2,278,648	2,227,331
Current liabilities:
Current installments of long-term debt	3,456	4,275
Accounts payable	421,746	424,272
Advance payments from customers	185,808	197,937
Income taxes payable	11,863	12,236
Accrued liabilities	88,990	110,416
Total current liabilities	711,863	749,136
Long-term debt, less current installments	399,924	320,675
Operating lease liabilities	87,561	86,687
Other long-term liabilities	44,179	43,922
Deferred income taxes	495	495
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $0.10 par value; 5,000 shares authorized, none issued	0	0
Common stock, $0.10 par value; 145,000 shares authorized; issued and outstanding - 35,589 and 35,164, respectively	3,559	3,516
Additional paid-in capital	518,499	519,238
Retained earnings	526,377	519,895
Accumulated other comprehensive loss	(13,809)	(16,233)
Total shareholders’ equity	1,034,626	1,026,416
Total liabilities and shareholders' equity	$ 2,278,648	$ 2,227,331