Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Taxes [Line Items]
Income tax expense	$ 547,000	$ 218,000	$ 6,422,000	$ 7,960,000
Pre-tax income	971,000	$ 849,000	9,194,000	$ 22,138,000
Unrecognized tax benefits	0		0
Maximum
Income Taxes [Line Items]
Amount of accrued interest expense included as a liability within the Company's Condensed Consolidated Statements of Financial Position	$ 100,000		$ 100,000		$ 100,000