(5) Bank Debt (Detail) (USD $)	1 Months Ended	12 Months Ended	62 Months Ended
	Oct. 31, 2012	Dec. 31, 2012	Oct. 17, 2017
Amortization of Deferred Loan Origination Fees, Net (in Dollars)	$ 1,500,000	$ 1,544,000
Loan Initiation Amortization Period - Years	five
Line of Credit Facility, Amount Outstanding (in Dollars)	11,400,000
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	165,000,000
LeverageRationHurdle			0.02
LeverageRatioLT1.5			1.5
LIBORPlusRateifRatioLT1.5			2.50%
LeverageRatio1point5to2			1.5
LeverageRatioGT2			0.03
MaximumLeverageRatio			2.75
Line of Credit Facility, Commitment Fee Percentage			50.00%
LineOfCreditCommitmentFeeBasisPointMinimum			37.5
Debt Instrument, Unused Borrowing Capacity, Fee (in Dollars)			0.33
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars)		$ 125,000,000