Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Sep. 12, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfer of asset fair value Level 1 to 2	$ 0
Transfer of liability fair value Level 1 to 2	0
Transfer of asset fair value Level 2 to 1	0
Transfer of liability fair value Level 2 to 1	0
Measured on a recurring basis | Contingent consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	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	6,400,000
Full House Mortgage Connection, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	$ 6,400,000	$ 6,300,000
Percentage of gross revenues to be paid yearly	8.00%
Contingent consideration period	10 years
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]
Contingent consideration liability	$ 6,400,000