Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

A summary of equity-based compensation expense recognized during the three and nine months ended September 30, 2017 and September 30, 2016 is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Class B Units	$	597	138		$	1,237	$	421
Restricted Stock Awards	823		—		1,973		—
Options	467		—		835		—
Total equity-based compensation expense	$	1,887	$	138	$	4,045	$	421

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The Company determined the grant-date fair value of the options using the Black-Scholes valuation model with the following weighted-average assumptions:

	Three Months Ended September 30, 2017		Nine Months Ended September 30, 2017
Expected volatility(1)	63.0	%	63.0	%
Expected dividend yield	—	%	—	%
Expected term (in years)(2)	6.25		6.26
Risk-free interest rate	1.9	%	1.9	%

(1) Measured using selected high-growth guideline companies and considering the risk factors that would influence the range of expected volatility because the Company does not have sufficient historical data to provide a reasonable basis upon which to estimate the expected volatility.

(2) Expected term represents the estimated period of time until an option is exercised and was determined using the simplified method because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term.

Schedule of Share-based Payment Award, Stock, Common Units, Valuation Assumptions [Table Text Block]

The Company determined the grant-date fair value of the Class B Units using an option pricing valuation model with the following weighted-average assumptions:

	Three Months Ended September 30,			Nine Months Ended September 30,
	2017	2016		2017		2016
Expected volatility(1)	n/a	70.3	%	63.0	%	67.1	%
Expected dividend yield	n/a	—	%	—	%	—	%
Expected term (in years)(2)	n/a	1.25		6.25		2.00
Risk-free interest rate	n/a	0.6	%	1.9	%	1.0	%

(1) Measured using selected high-growth guideline companies and considering the risk factors that would influence the range of expected volatility because the Company does not have sufficient historical data to provide a reasonable basis upon which to estimate the expected volatility.

(2) In 2017, the expected term represents the estimated period of time determined using the simplified method because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term.