Stockholders' Equity - Summary of Warrant Activity (Details)	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Weighted Average Exercise Price, Beginning balance ($ per share) | $ / shares	$ 6.78
Weighted Average Exercise Price, Ending balance ($ per share) | $ / shares	$ 0
Exercise of Issued Warrants
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Number of shares, outstanding beginning (shares) | shares	445,000
Number of shares, exercised (shares) | shares	(445,000)
Number of shares, outstanding ending balance (shares) | shares	0
Weighted Average Exercise Price, Exercised ($ per share) | $ / shares	$ 6.78