Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Full House Mortgage Connection, Inc. - USD ($)	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Sep. 12, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 6,230,000		$ 6,300,000
Percentage of gross revenues to be paid yearly	8.00%
Contingent consideration period	10 years
Measured on a recurring basis | Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 6,230,000	$ 6,400,000
Level 3 | Measured on a recurring basis | Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 6,230,000	$ 6,400,000