CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ (14,664)	$ 5,925
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	12,643	8,699
Provision for doubtful accounts	1,726	242
Share-based compensation expense	249	0
Deferred income taxes	(366)	(98)
Share of profit of affiliates	(22)	(874)
Changes in operating assets and liabilities:
Trade accounts receivable	(1,586)	(6,824)
Prepaid expenses and other assets	(2,937)	(3,538)
Accounts payable	(690)	2,718
Income taxes, net	(3,759)	(997)
Accrued and other liabilities	9,865	1,508
Net cash provided by operating activities	459	6,761
Investing Activities
Purchases of property, plant and equipment	(4,511)	(7,555)
Distributions received from affiliates	0	1,315
Cash acquired in Aegis Transactions	1,496	0
Net cash used in investing activities	(3,015)	(6,240)
Financing Activities
Proceeds from the issuance of common stock	115	0
Proceeds (payments) on long term debt	(2,800)	664
Proceeds from other debts, net	4,089	3,589
Net cash provided by financing activities	1,404	4,253
Effect of exchange rate changes on cash and cash equivalents and restricted cash	(1,242)	(36)
Net (decrease) increase in cash and cash equivalents and restricted cash	(2,394)	4,738
Cash and cash equivalents and restricted cash at beginning of period	22,919	19,511
Cash and cash equivalents and restricted cash at end of period	$ 20,525	$ 24,249