SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	$ (36,762)	$ (44,119)
Capital expenditures	(7,439)	(8,895)
Proceeds from asset dispositions	3,204	7,774
Cash transferred in sale of subsidiaries, net of cash received	(22,878)	0
Net cash used in investing activities	(27,113)	(1,121)
Proceeds from borrowings	75,585	387
Debt issuance costs	(10,016)	(2,378)
Repayment of debt	(5,821)	(14,194)
Dividends paid		0
Increases (decreases) in cash related to intercompany advances and debt	0	0
Partial prepayment of put/call obligation	0	(14)
Issuance of common stock	0	2,830
Repurchases for tax withholdings on vesting of equity awards	0	(1,484)
Net cash provided by (used in) financing activities	59,748	(14,853)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,840	(3,580)
Net increase (decrease) in cash, cash equivalents and restricted cash	(2,287)	(63,673)
Cash, cash equivalents and restricted cash at beginning of period	178,055	380,223
Cash, cash equivalents and restricted cash at end of period	175,768	316,550
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	0	0
Capital expenditures	0	0
Proceeds from asset dispositions	0	0
Cash transferred in sale of subsidiaries, net of cash received	0
Net cash used in investing activities	0	0
Proceeds from borrowings	0	0
Debt issuance costs	0	0
Repayment of debt	0	0
Dividends paid		0
Increases (decreases) in cash related to intercompany advances and debt	0	0
Partial prepayment of put/call obligation		0
Issuance of common stock		0
Repurchases for tax withholdings on vesting of equity awards		0
Net cash provided by (used in) financing activities	0	0
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash at beginning of period	0	0
Cash, cash equivalents and restricted cash at end of period	0	0
Parent Company Only
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	(34,861)	(32,865)
Capital expenditures	(1,435)	(654)
Proceeds from asset dispositions	0	0
Cash transferred in sale of subsidiaries, net of cash received	0
Net cash used in investing activities	(1,435)	(654)
Proceeds from borrowings	37,500	0
Debt issuance costs	(5,008)	(421)
Repayment of debt	0	0
Dividends paid		162,941
Increases (decreases) in cash related to intercompany advances and debt	(23,613)	(162,519)
Partial prepayment of put/call obligation		(14)
Issuance of common stock		2,830
Repurchases for tax withholdings on vesting of equity awards		(1,484)
Net cash provided by (used in) financing activities	8,879	1,333
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	(27,417)	(32,186)
Cash, cash equivalents and restricted cash at beginning of period	90,586	277,176
Cash, cash equivalents and restricted cash at end of period	63,169	244,990
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	10,847	11,992
Capital expenditures	(2,538)	(1,453)
Proceeds from asset dispositions	3,175	7,432
Cash transferred in sale of subsidiaries, net of cash received	0
Net cash used in investing activities	637	5,979
Proceeds from borrowings	0	0
Debt issuance costs	0	(32)
Repayment of debt	(1,701)	(5,262)
Dividends paid		1,649
Increases (decreases) in cash related to intercompany advances and debt	(9,534)	(21,716)
Partial prepayment of put/call obligation		0
Issuance of common stock		0
Repurchases for tax withholdings on vesting of equity awards		0
Net cash provided by (used in) financing activities	(11,235)	(25,361)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0	0
Net increase (decrease) in cash, cash equivalents and restricted cash	249	(7,390)
Cash, cash equivalents and restricted cash at beginning of period	3,205	8,904
Cash, cash equivalents and restricted cash at end of period	3,454	1,514
Non- Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	(12,748)	(23,246)
Capital expenditures	(3,466)	(6,788)
Proceeds from asset dispositions	29	342
Cash transferred in sale of subsidiaries, net of cash received	(22,878)
Net cash used in investing activities	(26,315)	(6,446)
Proceeds from borrowings	38,085	387
Debt issuance costs	(5,008)	(1,925)
Repayment of debt	(4,120)	(8,932)
Dividends paid		(164,590)
Increases (decreases) in cash related to intercompany advances and debt	33,147	184,235
Partial prepayment of put/call obligation		0
Issuance of common stock		0
Repurchases for tax withholdings on vesting of equity awards		0
Net cash provided by (used in) financing activities	62,104	9,175
Effect of exchange rate changes on cash, cash equivalents and restricted cash	1,840	(3,580)
Net increase (decrease) in cash, cash equivalents and restricted cash	24,881	(24,097)
Cash, cash equivalents and restricted cash at beginning of period	84,264	94,143
Cash, cash equivalents and restricted cash at end of period	$ 109,145	$ 70,046

The amount of cash transfered in the sale of subsidiaries net of cash received.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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