TWO Annual report pursuant to Section 13 and 15(d)

Accrued Interest Receivable (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	$ 50,303	$ 42,613
Loans Held-for-sale, Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	4,136	247
Loans Held-for-investment, Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	4,506	0
US Treasury Securities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	2,361	1,119
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	10,583	11,888
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	15,034	17,101
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	10,007	8,962
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	3,676	3,296
Available-for-sale Securities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	$ 39,300	$ 41,247