Acquisitions - Changes in the Company's Ownership Interest (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Business Acquisition [Line Items]
Net (loss) income attributable to Pyxus International, Inc. shareholders	$ (164,353)	$ (21,993)	$ (16,518)	$ (61,797)	$ (9,979)	$ (5,095)	$ (54,634)	$ (759)	$ (264,661)	$ (70,467)	$ 52,436
Figr East
Business Acquisition [Line Items]
Change from net (loss) income attributable to Pyxus International, Inc. shareholders and transfer from noncontrolling interest									$ (265,156)	$ (76,984)	52,436
Stock issued in transaction (shares)									1.4972	22.3522
Figr East | Paid in capital
Business Acquisition [Line Items]
Decrease in equity									$ (528)	$ (6,056)	0
Figr East | Accumulated other comprehensive income (loss)
Business Acquisition [Line Items]
Decrease in equity									$ 33	$ (461)	$ 0