Share-Based Compensation - Summary of Stock Compensation Expense (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation (benefit)	$ 7	$ (119)
Income tax benefit (expense)	$ 2	(33)
Unrecognized compensation expense		$ 21
Weighted-average amortization period remaining	0 years	6 months
Restricted Shares
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total share-based compensation	$ 2,019	$ 1,357
Income tax benefit	562	378
Unrecognized compensation expense	$ 5,566	$ 4,917
Weighted-average amortization period remaining	2 years 4 months 24 days	2 years 9 months 18 days