Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Summary of Significant Accounting Policies [Line Items]
Restricted cash	$ 3,500,000	$ 0
Cash and Cash Equivalents, at Carrying Value, Total	484,175	1,518,684	1,782,684	0
Working Capital Net Amount	340,066
Net Income (Loss) Attributable to Parent, Total	9,397,627
Retained Earnings (Accumulated Deficit), Total	$ (32,071,341)	$ (4,731,072)
Minimum [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets	0 years
Minimum [Member] | Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets	7 years
Maximum [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets	0 years
Maximum [Member] | Patents [Member]
Summary of Significant Accounting Policies [Line Items]
Property plant and equipments estimated useful lives of assets	10 years