Valuation of Intangible Assets (Detail) $ in Thousands	Jan. 01, 2015 USD ($)
Acquired Intangible Assets [Line Items]
Amount	$ 32,000
State insurance licenses
Acquired Intangible Assets [Line Items]
Amount	5,000
Value of business acquired
Acquired Intangible Assets [Line Items]
Amount	$ 25,500
Value of business acquired | Maximum
Acquired Intangible Assets [Line Items]
Useful Life	1 year
Agent Relationships
Acquired Intangible Assets [Line Items]
Useful Life	10 years
Amount	$ 900
Trade names
Acquired Intangible Assets [Line Items]
Useful Life	7 years
Amount	$ 600