Commitments and Contingencies - Narrative (Details) - USD ($) |
12 Months Ended | |||
---|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Nov. 10, 2015 |
|
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items] | ||||
Approved insurers, required assets (equal or greater than) | $ 400,000,000 | |||
Approved insurers, risked-based required assets, primary insurance floor | 5.60% | |||
Rent expense | $ 1,500,000 | $ 1,500,000 | $ 1,600,000 | |
Senior Secured Term Loan B [Member] | Credit Agreement [Member] | ||||
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items] | ||||
Debt instrument, face amount | $ 150,000,000 |