Fair Value Measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended		1 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Jul. 25, 2013 Subsequent Event	Jul. 26, 2013 Subsequent Event	Jun. 30, 2013 Minority Owned Unconsolidated
Fair Value Measurements [Line Items]
Cumulative preferred return rate						4.00%
Preferred stock stated value						$ 2.0
Preferred stock convertible rate into common stock						45.00%
Federal home loan bank stock redemption period	5 years	5 years
Proceeds from redemption of FHLB stock				$ 2.1	$ 2.1