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Summary of Company's Rent Expense (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leases, Rent Expense, Net, Total	$ 504,000	$ 8,649,000	$ 6,633,000
Continuing Operations [Member]
Operating Leases, Rent Expense, Net, Total	1,506,000	1,460,000	1,400,000
Discontinued Operations [Member]
Operating Leases, Rent Expense, Net, Total	$ (1,002,000)	$ 7,189,000	$ 5,233,000

X

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

+ Details

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- Details

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X

- Details

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