Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)	0 Months Ended
	Oct. 22, 2014
Disclosure - Subsequent Events - Additional Information (Detail) [Line Items]
Total consideration	$ 17,500,000
Un paid purchase consideration	$ 1,500,000
Promissory Note [Member]
Disclosure - Subsequent Events - Additional Information (Detail) [Line Items]
Debt instrument, term	2 years
Frequency of periodic payment on loan	semi-annually
Year One [Member] | Promissory Note [Member]
Disclosure - Subsequent Events - Additional Information (Detail) [Line Items]
Interest rate	5.00%
Year Two [Member] | Promissory Note [Member]
Disclosure - Subsequent Events - Additional Information (Detail) [Line Items]
Interest rate	13.00%