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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 |

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