Fair Value Measurements - Reconciliation of Assets and Liabilities Measured Using Significant Unobservable Inputs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment	$ (1,289)	$ 180	$ 100
Cash payments	(221)
Full House Mortgage Connection, Inc. | Measured on a recurring basis | Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance at Beginning	6,580	6,400
Fair value adjustment	1,289	(180)
Cash payments	(221)
Balance at Ending	5,070	6,580	$ 6,400
Full House Mortgage Connection, Inc. | Measured on a recurring basis | Contingent consideration | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance at Beginning	6,580
Balance at Ending	$ 5,070	$ 6,580