Reclassification of leasehold improvement to building and building improvements.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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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.

+ References

No definition available.

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Property and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Property Plant And Equipment [Line Items]
Acquisition cost for property and equipment		$ 44,004	$ 55,863	$ 50,415
Depreciation expense		$ 13,900	$ 11,000	$ 6,200
Danvers
Property Plant And Equipment [Line Items]
Reclassification of leasehold improvement to building and building improvements	$ 32,600
Danvers \| Land and Building
Property Plant And Equipment [Line Items]
Acquisition cost for property and equipment	16,500
Danvers \| Land
Property Plant And Equipment [Line Items]
Acquisition cost for property and equipment	3,000
Danvers \| Building and Building Improvements
Property Plant And Equipment [Line Items]
Acquisition cost for property and equipment	$ 13,000