Debt Arrangements - Narrative (Details)			12 Months Ended
	Oct. 14, 2016 USD ($)	Aug. 01, 2013 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)
Debt Instrument [Line Items]
Short-term debt			$ 540,157,000	$ 428,961,000
Compensating balance for short-term borrowings			893,000	1,225,000
Outstanding, credit facility			$ 207,727,000
EBITDA to fixed charges ratio requirement for debt covenant			2.0
Senior Notes | Senior Secured $275 Million 8.50% Note
Debt Instrument [Line Items]
Face amount of debt instrument	$ 275,000,000
Interest rate, notes (as a percent)	8.50%
Issue price of face amount	99.085%
Maximum allowed pledged voting capital stock	65.00%
Maximum allowed pledged non-voting capital stock	100.00%
Mandatory redemption price upon change of control (as a percent)	1.01
Senior Notes | 9.875% Senior Secured Second Lien Notes due 2021
Debt Instrument [Line Items]
Face amount of debt instrument		$ 735,000,000
Interest rate, notes (as a percent)		9.875%
Debt discount (premium) percentage		98.00%
Proceeds from issuance of senior long-term debt		$ 720,300,000
Redemption price (as a percent)		101.00%
Senior notes			$ 635,686,000
Extinguishment of debt			27,260,000
Payments of debt extinguishment costs			68,000
Unamortized discount of debt instrument			2,293,000
Repayment of long-term borrowings			25,987,000
Acceleration of deferred financing costs and amortization of debt discount			472,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity of credit facility	$ 60,000,000
Additional borrowing capacity of credit facility	$ 15,000,000
Borrowing base, percentage of eligible accounts receivable	85.00%
Borrowing base, percentage of appraised net-orderly-liquidation value of eligible inventory	85.00%
Borrowing base, percentage of eligible inventory valued at lower of cost and market value	65.00%
Borrowing base deduction and customary reserves of credit facility	$ 25,000,000
Maximum allowed unrestricted cash and cash equivalents	$ 180,000,000
Commitment fee percentage for unused credit facility capacity	0.50%
Maximum number of days allowed to have more than the maximum unrestricted cash and cash equivalents	7 days
Excess borrowing ability of credit facility	$ 12,500,000
Lower threshold of excess borrowing ability of credit facility (as a percent)	25.00%
Cash dominion period of credit facility	30 days
Fixed charge ratio of credit facility	1.00
Excess borrowing ability for fixed charge coverage ratio	$ 10,000,000
Excess borrowing ability for fixed charge coverage ratio	20.00%
Financial covenant threshold of credit facility, consecutive days	30 days
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.50%
Line of Credit
Debt Instrument [Line Items]
Short-term debt, maximum outstanding amount			$ 745,516,000	$ 795,934,000
Weighted-average interest rate (as a percent)			6.90%	6.60%
Compensating balance for short-term borrowings			$ 893,000	$ 1,225,000
Line of Credit | Leaf - Other Regions
Debt Instrument [Line Items]
Short-term debt			187,787,000	147,120,000
Inventory pledged as collateral			$ 124,541,000	$ 63,989,000
Minimum
Debt Instrument [Line Items]
Term of operating lines of credit			180 days
Minimum ratio of EBITDA to fixed charges for dividend distributions	2.0
Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage for unused credit facility capacity	0.375%
Maximum
Debt Instrument [Line Items]
Term of operating lines of credit			270 days
Maximum | Senior Notes | 9.875% Senior Secured Second Lien Notes due 2021
Debt Instrument [Line Items]
Annual rate increase of addition special interest of debt instrument		1.00%
Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage for unused credit facility capacity	0.50%