TWO Quarterly report pursuant to Section 13 or 15(d)

Commercial Real Estate Assets by Property Type (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 2,171,344	$ 1,782,749	$ 1,412,543	$ 1,114,548	$ 926,377	$ 660,953
Percentage of Commercial Portfolio	100.00%		100.00%
Office Building [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 1,133,866		$ 718,780
Percentage of Commercial Portfolio	52.20%		50.90%
Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 385,222		$ 260,683
Percentage of Commercial Portfolio	17.70%		18.50%
Retail Site [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 247,196		$ 237,414
Percentage of Commercial Portfolio	11.40%		16.80%
Hotel [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 209,874		$ 90,585
Percentage of Commercial Portfolio	9.70%		6.40%
Industrial Property [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial real estate assets	$ 195,186		$ 105,081
Percentage of Commercial Portfolio	9.00%		7.40%