Represents the number of installments in which notes were payable.

No definition available.

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- Definition

Represents the number of interest only notes payable to related party note installments.

+ References

No definition available.

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- Definition

The cash outflow for the payment of principal on borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

+ References

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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-Publisher FASB
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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

The average effective interest rate during the reporting period.

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-Name Accounting Standards Codification
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-SubTopic 30
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- References

No definition available.

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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

No definition available.

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Notes Payable - Notes Payable to Related Parties (Details) - Biohaven Pharmaceuticals, Inc. $ in Thousands			9 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($) installment	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Majority Shareholder
Notes Payable to Related Parties
Ownership interest acquired		100.00%		100.00%
Aggregate purchase consideration		$ 595		$ 595
Number of installments in which notes are payable \| installment		5
Number of interest only related party notes payable installments \| installment		4
Interest rate of notes		4.50%
IPO
Notes Payable to Related Parties
Repayment of principal amount to related party	$ 595		$ 595
Repayment of accrued interest amount to related party			$ 9