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Leases Leases Text Tags (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Lessee, Lease, Description [Line Items]
Recognition of right-of-use asset	$ 19,951	$ 0
Operating Lease, Weighted Average Discount Rate, Percent	2.98%
Operating Lease, Weighted Average Remaining Lease Term	8 years 6 months
Operating Lease, Expense	$ 730
Operating Lease, Payments	686
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative Effect of New Accounting Principle	5,339
Accumulated Deficit | Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative Effect of New Accounting Principle	$ 5,339

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- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 45
-Paragraph 4
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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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