Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 3,253	$ 3,903
Goodwill [Roll Forward]
Balance at April 1, 2019	322,816
Currency translation	2,485
Balance at June 30, 2019	325,301
Gross Carrying Amount	287,959		$ 285,490
Accumulated Amortization	(56,449)		(52,550)
Net	231,510		232,940
Indefinite-Lived Trademarks	47,239		46,981
Trademark
Goodwill [Roll Forward]
Gross Carrying Amount	6,289		6,212
Accumulated Amortization	(4,254)		(4,138)
Net	2,035		2,074
Indefinite-lived Intangible Assets [Member]
Goodwill [Roll Forward]
Accumulated Amortization	0		0
Customer relationships
Goodwill [Roll Forward]
Gross Carrying Amount	184,208		182,328
Accumulated Amortization	(38,307)		(35,344)
Net	145,901		146,984
Unpatented Technology [Member]
Goodwill [Roll Forward]
Gross Carrying Amount	46,753		46,715
Accumulated Amortization	(11,144)		(10,412)
Net	35,609		36,303
Other
Goodwill [Roll Forward]
Gross Carrying Amount	3,470		3,254
Accumulated Amortization	(2,744)		(2,656)
Net	$ 726		$ 598

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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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