Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), net of tax, Beginning balance	$ 7,401	$ (6,984)	$ (6,984)
Other comprehensive gain before reclassifications			14,385
Amounts reclassified from accumulated other comprehensive income (loss)
Net current period other comprehensive loss			14,385
Accumulated other comprehensive income (loss), net of tax, Ending balance	$ 7,401	$ (6,984)	$ 7,401