Long-term Debt - Schedule of Maturities of Long Term Debt (Parenthetical) (Detail)	6 Months Ended
Jun. 30, 2016
September 30, 2016- March 31, 2017 [Member]
Debt Instrument [Line Items]
Principal payment date	Sep. NaN, 2016
June 30, 2017-December 31, 2018 [Member]
Debt Instrument [Line Items]
Principal payment date	Jun. NaN, 2017

Description of the frequency of periodic payments (monthly, quarterly, annual).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentFrequencyOfPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration