Serviced Mortgage Assets (Details) $ in Thousands |
Sep. 30, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Number of Loans |
255,409
|
246,972
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Principal Amount Outstanding |
$ 59,300,753
|
$ 52,496,181
|
| Loans Held-for-sale, Residential Mortgages [Member] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Number of Loans |
1,439
|
1,415
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Principal Amount Outstanding |
$ 720,609
|
$ 812,661
|
| Loans Held-for-investment, Residential Mortgages [Member] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Number of Loans |
4,938
|
4,329
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Principal Amount Outstanding |
$ 3,499,285
|
$ 3,117,219
|
| Servicing Contracts [Member] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items] |
|
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Number of Loans |
249,032
|
241,228
|
| Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together, Principal Amount Outstanding |
$ 55,080,859
|
$ 48,566,301
|