Debt - Summary of Debt (Parenthetical) (Detail)	6 Months Ended
Jun. 30, 2014 USD ($)	Jun. 30, 2014 U S Dollar Euro [Member] EUR (€)	Jun. 30, 2014 Debt instrument, redemption, through September 2016 [Member] Term Loan [Member] USD ($)	Jun. 30, 2014 Debt instrument, redemption, through September 2017 [Member] Term Loan [Member] USD ($)	Jun. 30, 2014 Debt instrument, redemption, through August 2018 [Member] Term Loan [Member] USD ($)
Debt Instrument [Line Items]
Outstanding borrowings under Euro denominated note payable to bank	$ 34,000	€ 25,000	$ 1,200,000	$ 1,500,000	$ 1,900,000
Interest rate	3.82%
Term loans, Year of Maturity	2016-01		2016-09	2017-09	2018-08

Amount of the required periodic payments of both interest and principal.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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