Stockholders' Equity - Schedule of 2017 Nonvested Share Activity (Details) - $ / shares	5 Months Ended	9 Months Ended
	Dec. 31, 2017	Sep. 30, 2018	Jul. 31, 2017
Number of Shares
Options forfeited (in shares)		(27,000)
Vested (in shares)		(42,500)
Weighted Average Grant Date Fair Value Per Share
Forfeited (in dollars per share)		$ 24.84
Vested (in dollars per share)		$ 35.01
2017 Plan
Number of Shares
Non-vested, beginning balance (in shares)		174,000
Options granted (in shares)	214,000	188,550
Options outstanding (in shares)	174,000	335,550	0
Non-vested, ending balance (in shares)	174,000	293,050
Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning balance (in dollars per share)		$ 34.78
Granted (in dollars per share)		23.19
Outstanding (in dollars per share)		29.07
Non-vested, ending balance (in dollars per share)	$ 34.78	$ 28.21