Plan of Liquidation - Additional Information (Detail)	6 Months Ended
Jun. 30, 2016
Business Acquisition [Line Items]
Liquidation date on which disposition of assets completes	Dec. 31, 2015
Liquidation Value [Member]
Business Acquisition [Line Items]
Liquidation date on which disposition of assets completes	Aug. 05, 2016

Date the liquidation is expected to be completed, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=64830158&loc=SL35686388-199418

Name:	us-gaap_LiquidationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration