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

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Available-for-Sale Securities, at Fair Value Schedule of Unrealized Loss on Investments (Details)

v3.19.3.a.u2

Available-for-Sale Securities, at Fair Value Schedule of Unrealized Loss on Investments (Details) $ in Thousands	Dec. 31, 2019 USD ($) position	Dec. 31, 2018 USD ($) position
Debt Securities, Available-for-sale [Abstract]
Debt Securities, Available-for-sale, Number of Positions \| position	1,237	1,550
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions \| position	122	290
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions \| position	151	489
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 3,970,743	$ 4,386,946
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(25,061)	(66,520)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	735,727	9,501,123
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(62,932)	(370,082)
Debt Securities, Available-for-sale, Unrealized Loss Position	4,706,470	13,888,069
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (87,993)	$ (436,602)

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