Benefit Plans - Schedule of Defined Benefit Plan in Accumulated Other Comprehensive Income (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($)
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Beginning amount recorded in other accumulated comprehensive income (loss)	$ (548)
Amounts recorded in accumulated other comprehensive income (loss) consist of:
Pension obligation adjustment, net of tax	548
Total recorded in accumulated other comprehensive income	$ (548)

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (i-k)
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant