Loans Receivable - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Loans	Dec. 31, 2013 Loans
Receivables [Abstract]
Loans receivable accrued interest	$ 342,000	$ 501,000
Cumulative accretion of loans receivable	1,827,000	6,488,000
Unrecognized accretable discount	3,340,000	5,782,000
Weighted average coupon rate on loans receivable	10.44%	6.55%
Weighted average yield to maturity	14.58%	11.59%
Provision for loan loss	$ 0	$ 348,000
Number of non-performing loans with past due payments	1	1