Acquisition - Narrative (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	0 Months Ended
Mar. 31, 2015	Jan. 01, 2015
J.P. Morgan Retirement Plan Services (RPS)
Business Acquisition [Line Items]
Revenue of acquired entity from date of acquisition	$ 48,628
Net income of acquired entity from date of acquisition	1,000
Putnam Retirement Business
Business Acquisition [Line Items]
Cash paid		4,114
Other assets acquired		11,501
Other liabilities assumed		7,895
Dividend		$ 508

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Transactions Between Entities Under Common Control, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets

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This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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