Fair Value Measurements - Additional Information (Details) - Inforth Technologies, LLC - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Business Acquisition [Line Items]
Business combination, contingent consideration arrangements, change in range of outcomes, contingent consideration, liability, value, high	$ 4,000	$ 4,000
Business acquisition, effective date of acquisition	Jan. 31, 2018

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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