Commitments and Contingencies - Additional Information (Details) - KBA Grants $ in Millions		12 Months Ended
Dec. 31, 2013 USD ($) award	Dec. 31, 2019
Other Commitments [Line Items]
Number of awards grants \| award	2
Amount of grants awarded \| $	$ 2.0
Period of time after which would be required to repay		10 years

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.

No definition available.

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