Prepaid Expenses and Other Assets - Additional Information (Detail) $ in Thousands	1 Months Ended	6 Months Ended
Jan. 31, 2016 USD ($)	Jun. 30, 2016 USD ($) a	Jun. 30, 2015 USD ($)
Proceeds from sales of property, plant and equipment		$ 4,349	$ 3
Olive Branch Assets [Member]
Area of land own \| a		62
Proceeds from sales of property, plant and equipment	$ 4,200

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Name:	us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration