Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
Unrecorded Unconditional Purchase Obligation | |||
Operating leases, rent expense | $ 2.5 | $ 1.9 | $ 2.7 |
Construction Contracts | |||
Unrecorded Unconditional Purchase Obligation | |||
Commitments under construction contracts | $ 1.1 | ||
Related Entity | |||
Unrecorded Unconditional Purchase Obligation | |||
Ownership percentage in partnership | 50.00% | ||
Obligation to repurchase loans sold | |||
Unrecorded Unconditional Purchase Obligation | |||
Amount of sold residential mortgage loans with recourse provisions | $ 1.9 | $ 2.7 |