Description of the Business and Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Millions		3 Months Ended
	Jul. 27, 2020 USD ($) $ / shares shares	Mar. 31, 2021 Employee Office $ / shares shares	Mar. 31, 2020 $ / shares
Description Of Business And Basis Of Presentation [Line Items]
Entity formation, month and year		2013-11
Number of offices in which entity operates | Office		70
Entity number of employees | Employee		2,000
Common stock issued, shares | shares		506,330
Share price | $ / shares		$ 37.61	$ 31.60
IPO
Description Of Business And Basis Of Presentation [Line Items]
Common stock issued, shares | shares	11,500,000
Share price | $ / shares	$ 15.00
Net proceeds from sale of common stock | $	$ 161.3
Underwriting discounts | $	11.2
Deferred offset | $	$ 4.4
Underwriters
Description Of Business And Basis Of Presentation [Line Items]
Common stock issued, shares | shares	1,500,000