CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (70,781)	$ (72,238)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	115,074	87,646
Amortization of debt issuance costs	2,722	1,769
Stock-based compensation	27,597	18,990
Deferred income taxes	(48,802)	(18,056)
Provision for excess and obsolete inventories	3,604	2,808
Restructuring and related charges	25,372	8,581
Cash payments for restructuring charges	(22,949)	(7,395)
Other operating activities	8,894	9,010
Changes in assets and liabilities, net of acquisition:
Accounts receivable, net	3,778	(23,863)
Inventory, net	(55,584)	16,380
Current and other assets	9,352	(2,693)
Accounts payable	34,910	20,627
Accrued liabilities	(29,616)	39,505
Income taxes	29,995	(8,521)
Cash provided by operating activities	33,566	72,550
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from sales of investments	170	124,640
Proceeds from maturities of investments	0	131,017
Purchase of investments	(806)	(536)
Cash paid for acquisition, net of cash acquired	0	(1,650,242)
Capital expenditures	(9,260)	(7,535)
Proceeds from sale of property and equipment	2,142	0
Cash (used for) provided by investing activities	(7,754)	(1,402,656)
CASH FLOWS FROM FINANCING ACTIVITIES
Employees' tax withheld and paid for restricted stock and restricted stock units	(9,281)	(13,342)
Proceeds from issuances under stock-based compensation plans	6,616	14,872
Proceeds from debt issuance, net	0	1,244,713
Payment of cash dividends	(11,922)	(10,982)
Repayments of long-term debt	(25,000)	0
Cash (used for) by financing activities	(39,587)	1,235,261
Effect of exchange rate changes on cash and cash equivalents	(2,292)	(4,730)
Net increase (decrease) in cash and cash equivalents	(16,067)	(99,575)
Cash and cash equivalents at beginning of period	202,509	390,661
Cash and cash equivalents at end of period	186,442	291,086
SUPPLEMENTAL NON-CASH DISCLOSURES
Cash paid for income taxes	5,836	14,047
Cash paid for interest	$ 39,777	$ 29,244