Stock Compensation Plans and Share-Based Compensation Awards (Tables)

12 Months Ended

Dec. 31, 2018

Stock Compensation Plans and Share-Based Compensation Awards

Summary of share based compensation expense and related income tax benefit recognized for share-based compensation awards

	Year Ended December 31,
	2018		2017		2016
Share-based compensation expense	$	55,519	$	—	$	—
Income tax benefit	$	3,347	$	—	$	—

Summary of stock option activity

A summary of stock option activity is as follows (in thousands, except per share and term data):

	Number of Options	Weighted average grant date fair value		Weighted average exercise price		Weighted average remaining contractual term
Balance at December 31, 2017	—	$	—	$	—
Granted	2,179		7.06		16.93
Exercised	—		—		—
Forfeited	(93)		6.68		16.00
Balance at December 31, 2018	2,086	$	6.77	$	16.22		9.41

Summary of assumptions used in estimating the grant date fair values

	Year Ended December 31,
	2018
Expected life (in years)		7.00
Weighted average risk-free interest rate		3.02
Expected volatility		33.98
Dividend yield		0.00
Weighted average fair value at grant date	$	7.06

RSAs

Stock Compensation Plans and Share-Based Compensation Awards

Summary of stock activity

A summary of RSAs activity is as follows (in thousands, except per share data):

	Number of RSAs	Weighted average grant date fair value
Balance at December 31, 2017	—	$	—
Granted	607		16.00
Vested	(564)		16.00
Forfeited	(1)		16.00
Balance at December 31, 2018	42	$	16.00

RSUs

Stock Compensation Plans and Share-Based Compensation Awards

Summary of stock activity

A summary of RSUs activity is as follows (in thousands, except per share data):

	Number of RSUs	Weighted average grant date fair value
Balance at December 31, 2017	—	$	—
Granted	527		16.29
Vested	—		—
Forfeited	(21)		16.00
Balance at December 31, 2018	506	$	16.30