Goodwill and Other Intangible Assets, Net - Goodwill and Intangible Asset Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning balance				$ 34,336	$ 34,336	$ 27,546
Goodwill acquired					0	7,174
Goodwill impairment	$ (33,759)	$ 0	$ 0	0	(33,759)	0	$ 0
Impact of foreign currency translation					(577)	(384)
Goodwill, ending balance	0				0	34,336	27,546
Finite-lived Intangible Assets [Roll Forward]
Accumulated amortization							(51,850)
Goodwill and intangible assets, net				106,117	106,117	98,270
Additions					2,663	17,220
Amortization expense					(6,991)	(7,943)	(5,982)
Impact of foreign currency translation					(2,082)	(1,430)
Net balance	65,948				65,948
Gross balance							150,120
Goodwill and intangible assets, net	65,948				$ 65,948	106,117	98,270
Customer Relationships
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years as of March 31, 2020					8 years 7 months 28 days
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount							58,530
Accumulated amortization							(25,005)
Net balance				34,953	$ 34,953	33,525
Additions					0	5,450
Amortization expense					(4,022)	(4,022)
Impact of foreign currency translation					0	0
Net balance	30,931				$ 30,931	34,953	33,525
Production and Supply Contracts
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years as of March 31, 2020					3 years
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount							14,893
Accumulated amortization							(8,774)
Net balance				4,225	$ 4,225	6,119
Additions					0	0
Amortization expense					(549)	(1,894)
Impact of foreign currency translation					0	0
Net balance	3,676				$ 3,676	4,225	6,119
Internally Developed Software
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years as of March 31, 2020					3 years 11 months 15 days
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount							18,812
Accumulated amortization							(17,828)
Net balance				1,526	$ 1,526	984
Additions					2,468	1,105
Amortization expense					(691)	(563)
Impact of foreign currency translation					0	0
Net balance	3,303				$ 3,303	1,526	984
Licenses
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years as of March 31, 2020					16 years 11 months 12 days
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount							30,339
Accumulated amortization							(243)
Net balance				30,640	$ 30,640	30,096
Additions					195	2,991
Amortization expense					(1,666)	(1,401)
Impact of foreign currency translation					(1,505)	(1,046)
Net balance	27,664				$ 27,664	30,640	30,096
Trade Names
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years as of March 31, 2020					6 years
Finite-lived Intangible Assets [Roll Forward]
Gross carrying amount							0
Accumulated amortization							0
Net balance				$ 437	$ 437	0
Additions					0	500
Amortization expense					(63)	(63)
Impact of foreign currency translation					0	0
Net balance	$ 374				$ 374	$ 437	$ 0