Condensed Consolidated Statements of Shareholder’s Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Total
Beginning balance at Dec. 31, 2018	$ 2	$ 68,498	$ (563)	$ 28,355	$ 96,292
Beginning balance (in shares) at Dec. 31, 2018	17,000,000
Changes in Stockholders’ Equity
Other comprehensive income, net of tax			2,187		2,187
Distribution to stockholder				(5,120)	(5,120)
Stock-based compensation expense		22,961			22,961
Net income (loss)				(14,411)	(14,411)
Ending balance at Mar. 31, 2019	$ 2	91,459	1,624	8,824	101,909
Ending balance (in shares) at Mar. 31, 2019	17,000,000
Beginning balance at Dec. 31, 2019	$ 2	180,012	4,686	33,856	$ 218,556
Beginning balance (in shares) at Dec. 31, 2019	23,468,750				24,468,750
Changes in Stockholders’ Equity
Other comprehensive income, net of tax			(5,833)		$ (5,833)
Stock-based compensation expense		442			442
Issuance of common stock in stock offering, net of offering cost		35,464			35,464
Issuance of common stock in stock offering, net of offering costs (in shares)	750,000
Issuance of common stock pursuant to employee stock purchase plan		416			416
Issuance of common stock pursuant to employee stock purchase plan (in shares)	21,111
Net income (loss)				11,775	11,775
Ending balance at Mar. 31, 2020	$ 2	$ 216,334	$ (1,147)	$ 45,631	$ 260,820
Ending balance (in shares) at Mar. 31, 2020	24,239,861				24,239,861