Financing Agreements (Details) - Affiliated Entity - Voya Financial, Inc. - Reciprocal Loan Agreement - USD ($)		3 Months Ended		9 Months Ended
	Apr. 01, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity, as a percent	3.00%
Interest Expense		$ 0	$ 100,000		$ 100,000
Interest income earned on reciprocal loan		$ 0	$ 0	$ 400,000	$ 700,000