Income Taxes - Schedule of Earnings Before Incomes Taxes, Income Tax Expense and Effective Income Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Earnings before income taxes	$ 16,338	$ 3,652	$ 45,402	$ 21,266
Income tax expense	$ 3,617	$ 801	$ 10,499	$ 4,715
Effective income tax rate	22.10%	21.90%	23.10%	22.20%