Acquisition	12 Months Ended
Dec. 31, 2017
Business Combinations [Abstract]
Acquisition	Acquisition Putnam Retirement Business On January 1, 2015, the Company acquired the retirement business of Putnam, an affiliate of the Company. The transaction was accounted for as a combination between entities under common control. As such, the assets and liabilities acquired from Putnam were recorded at historical cost as of January 1, 2015. In exchange for cash paid in the amount of $4,114, the Company acquired $11,501 of other assets, assumed $7,717 of other liabilities, and recognized a dividend of $330.

Acquisition

12 Months Ended

Dec. 31, 2017

Putnam Retirement Business

On January 1, 2015, the Company acquired the retirement business of Putnam, an affiliate of the Company. The transaction was accounted for as a combination between entities under common control. As such, the assets and liabilities acquired from Putnam were recorded at historical cost as of January 1, 2015. In exchange for cash paid in the amount of $4,114, the Company acquired $11,501 of other assets, assumed $7,717 of other liabilities, and recognized a dividend of $330.