Related Party Transactions - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
	Sep. 04, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related Party Transactions [Abstract]
Company contribution to a multi employer 401K plan at discretionary amount of employee's cash compensation, maximum percentage		6.00%
Company contribution to a multi employer 401K plan at discretionary amount of employee's cash compensation, amount		$ 369,000	$ 379,000	$ 378,000
Deferred compensation, employee contribution, percentage		2.00%
Deferred compensation, employer contribution, percentage		3	3	3
Deferred compensation, company contribution, amount		191,300	238,000	231,000
Deferred compensation, cumulative unfunded liability		1,600,000	2,200,000
Ancillary costs and expenses		6,300,000	6,000,000	6,100,000
Liability due to The Saul Organization for the Company's share of these ancillary costs and expenses		499,000	499,000
Insurance commissions and fees expense		447,300	372,000	341,000
Monthly consulting fees	60,000
Term of consulting agreement	2 years
Consulting fees		$ 720,000	$ 225,000