Income Taxes - Summary of Change in Deferred Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Consolidated statements of income	$ (1,301)	$ 1,971	$ (3,238)
Consolidated statements of stockholders' equity	1,550	92	(567)
Net change in deferred income tax	$ 2,851	$ 2,063	$ (3,805)