Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 262,269	$ 271,749
Restricted cash	1,650	0
Accounts receivable, net of allowance for doubtful accounts of $908 and $788, respectively	446,515	355,883
Contract assets	179,172	155,243
Inventories	666,742	523,240
Prepaid expenses and other assets	44,901	41,688
Income taxes receivable	23	341
Total current assets	1,601,272	1,348,144
Property, plant and equipment, net	198,497	186,666
Operating lease right-of-use assets	98,580	99,158
Goodwill	192,116	192,116
Deferred income taxes	7,876	5,972
Other assets, net	68,444	71,824
Total assets	2,166,785	1,903,880
Current liabilities:
Current installments of long-term debt	2,630	985
Accounts payable	500,886	426,555
Advance payments from customers	173,557	118,124
Income taxes payable	14,609	6,164
Accrued liabilities	93,396	102,554
Total current liabilities	785,078	654,382
Long-term debt, less current installments	262,185	129,289
Operating lease liabilities	90,936	90,878
Other long-term liabilities	42,729	55,445
Deferred income taxes	84	84
Commitments and contingencies
Shareholders’ equity:
Preferred stock, $0.10 par value; 5,000 shares authorized, none issued
Common stock, $0.10 par value; 145,000 shares authorized; issued and outstanding - 35,140 and 35,213, respectively	3,514	3,521
Additional paid-in capital	509,172	507,447
Retained earnings	491,379	479,992
Accumulated other comprehensive loss	(18,292)	(17,158)
Total shareholders’ equity	985,773	973,802
Total liabilities and shareholders' equity	$ 2,166,785	$ 1,903,880