Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities
Net income (loss)	$ 70,668	$ (227,451)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	35,781	16,694
Deferred income taxes	(2,357)	2,191
Loss on disposal of assets and costs from exit and disposal activities	1,647	707
ESOP and stock-based compensation	12,462	7,425
ESOP special dividend compensation		246,752
Amortization of deferred financing charges	98	174
Fair market value adjustments to derivatives	(1,082)	1,789
Equity in net income of unconsolidated affiliates	(173)	(434)
Other operating activities	269	(2,880)
Changes in working capital:
Receivables	(42,093)	(44,494)
Inventories	44,140	34,803
Prepaid expenses and other current assets	(3,520)	(3,089)
Accounts payable, accrued expenses, and other liabilities	17,893	30,653
Net cash provided by operating activities	133,733	62,840
Cash Flows from Investing Activities
Capital expenditures	(10,295)	(9,723)
Other investing activities	435	(13)
Net cash used in investing activities	(9,860)	(9,736)
Cash Flows from Financing Activities
Payments on syndicated Term Loan Facility	(1,750)
Payments on Credit Agreement	(50,000)
Payments on finance lease obligations	(5,700)	(6,047)
Cash dividends paid	(7,737)	(69,641)
Proceeds from exercise of stock options	2,239	1,513
Other financing activities		(258)
Net cash used in financing activities	(62,948)	(52,633)
Effect of exchange rate changes on cash	52	(5)
Net change in cash	60,977	466
Cash at beginning of period	174,233	8,891
Cash at end of period	235,210	9,357
SUPPLEMENTAL CASH FLOW INFORMATION
Cash (refund) paid for income taxes	(19)	535
Cash paid for interest	6,934	3,920
Non-cash operating, investing and financing activities:
Acquisition of property, plant and equipment under finance lease and incurred lease obligations	1,278	296
Balance in accounts payable for the acquisition of property, plant and equipment	$ 3,772	4,364
PNC Credit Agreement [Member]
Cash Flows from Financing Activities
Payments on Credit Agreement		(115,600)
Proceeds from Credit Agreement		$ 137,400