Debt (Details)		3 Months Ended		6 Months Ended
	Jun. 01, 2017 USD ($)	Jun. 30, 2017 USD ($)	May 31, 2017 USD ($)	Jun. 30, 2017 USD ($)
Credit Facility
Line of Credit Facility [Line Items]
Leverage ratio		2.5		2.5
Leverage ratio, scheduled to be reduced to over next 18 months		1.75		1.75
Credit Facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				3.75%
Credit Facility | Alternate base rate
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				2.75%
Credit Facility | Minimum | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				3.50%
Credit Facility | Minimum | Alternate base rate
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				2.50%
Credit Facility | Maximum | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				3.75%
Credit Facility | Maximum | Alternate base rate
Line of Credit Facility [Line Items]
Basis spread on variable interest rate				2.75%
Credit Facility | Term loan
Line of Credit Facility [Line Items]
Borrowing capacity	$ 260,000,000.0
Debt term	7 years
Delayed draw fee			$ 1,200,000
Amount outstanding		$ 260,000,000		$ 260,000,000
Annual principal payment, percentage of principal				1.00%
Amount required to be prepaid, percentage of excess cash flow				50.00%
Premium due in connection with a prepayment in connection with a repricing transaction within the six-month period following the closing of the Credit Agreement				1.00%
Credit Facility | Term loan | Leverage ratio below 1.00 to 1.00
Line of Credit Facility [Line Items]
Amount required to be prepaid, percentage of excess cash flow				25.00%
Credit Facility | Term loan | Leverage ratio below 0.50 to 1.00
Line of Credit Facility [Line Items]
Amount required to be prepaid, percentage of excess cash flow				0.00%
Credit Facility | Term loan | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable interest rate, floor	0.75%			0.75%
Basis spread on variable interest rate	3.75%
Credit Facility | Term loan | LIBOR | Net leverage levels of less than 1.0
Line of Credit Facility [Line Items]
Basis spread on variable interest rate	3.50%
Credit Facility | Revolving credit facility
Line of Credit Facility [Line Items]
Borrowing capacity	$ 100,000,000.0
Debt term	5 years
Amount outstanding		0		$ 0
Potential additional borrowing capacity	$ 75,000,000.0
Pro forma leverage ratio used for calculation of potential increase in borrowing capacity	1.75
Commitment fee percentage				0.50%
Credit Facility | Revolving credit facility | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable interest rate, floor	0.00%			0.00%
Basis spread on variable interest rate	3.75%
Credit Facility | Revolving credit facility | Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage				0.375%
Credit Facility | Revolving credit facility | Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage				0.50%
Previous Credit Facility | Revolving credit facility
Line of Credit Facility [Line Items]
Write off of unamortized deferred financing costs		$ 1,100,000
RidgeWorth | Credit Facility | Term loan
Line of Credit Facility [Line Items]
Proceeds from line of credit	$ 260,000,000