Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 3,115	$ 3,253
Goodwill [Roll Forward]
Balance at April 1, 2020	319,679
Currency translation	3,235
Balance at June 30, 2020	322,914
Gross Carrying Amount	285,380		$ 282,380
Accumulated Amortization	(68,271)		(64,418)
Net	217,109		217,962
Indefinite-Lived Trademarks	47,007		46,670
Trademark
Goodwill [Roll Forward]
Gross Carrying Amount	6,134		6,016
Accumulated Amortization	(4,383)		(4,238)
Net	1,751		1,778
Indefinite-lived Intangible Assets [Member]
Goodwill [Roll Forward]
Accumulated Amortization	0		0
Customer relationships
Goodwill [Roll Forward]
Gross Carrying Amount	182,298		179,882
Accumulated Amortization	(47,094)		(44,216)
Net	135,204		135,666
Unpatented Technology [Member]
Goodwill [Roll Forward]
Gross Carrying Amount	46,719		46,669
Accumulated Amortization	(14,043)		(13,306)
Net	32,676		33,363
Other
Goodwill [Roll Forward]
Gross Carrying Amount	3,222		3,143
Accumulated Amortization	(2,751)		(2,658)
Net	$ 471		$ 485

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit.

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