Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Dec. 31, 2018	Mar. 31, 2018
Assets
Cash and cash equivalents	$ 354,218	$ 547,415
Short-term investments in securities	499,528	279,787
Accounts receivable - trade, net	249,615	275,259
Accounts receivable - affiliates	527	9,255
Inventories, net	590,827	516,777
Income taxes receivable	25,399	2,566
Prepaid and other	63,665	70,665
Total current assets	1,783,779	1,701,724
Property and equipment, net	442,811	418,286
Goodwill	317,676	316,298
Intangible assets, net	122,171	128,612
Deferred income taxes	66,051	75,720
Other assets	37,042	32,126
Total Assets	2,769,530	2,672,766
Liabilities and Stockholders' Equity
Accounts payable - trade	91,019	89,726
Accounts payable - affiliates	939	26,320
Income taxes payable	26,629	8,290
Accrued payroll and benefits	48,003	52,044
Accrued expenses	140,208	118,183
Total current liabilities	306,798	294,563
Income taxes payable	59,061	69,645
Pensions	7,847	10,605
Deferred income taxes	11,939	12,895
Other liabilities	46,912	41,615
Total Liabilities	432,557	429,323
Stockholders' Equity:
Preferred stock, par value $.01 per share: Authorized, 20,000 shares; None issued and outstanding
Common stock, par value $.01 per share: Authorized, 300,000 shares; issued, 176,369 shares; outstanding, 168,434 and 168,795 shares at March 31, 2018 and December 31, 2018, respectively	1,764	1,764
Additional paid-in capital	361,324	360,077
Retained earnings	2,106,514	1,962,467
Accumulated other comprehensive income (loss)	(35,060)	21,257
Treasury stock, at cost: 7,935 and 7,574 shares at March 31, 2018 and December 31, 2018, respectively	(97,569)	(102,122)
Total Stockholders' Equity	2,336,973	2,243,443
Total Liabilities and Stockholders' Equity	$ 2,769,530	$ 2,672,766