Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Stock Compensation Expense

The following table summarizes stock option compensation expense for the nine months ended September 30, 2017 and 2016:

	Nine Months Ended September 30,
	2017		2016
Total share-based compensation – stock options	$	857	$	553
Income tax benefit		348		—
Unrecognized compensation expense		1,074		1,431
Weighted-average amortization period remaining		1.2 years		2.0 years

Restricted Shares

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Stock Compensation Expense

The following table summarizes restricted stock compensation expense for the nine months ended September 30, 2017:

	Nine Months Ended September 30,
	2017
Total share-based compensation - restricted stock	$	94
Income tax benefit		38
Unrecognized compensation expense		1,087
Weighted-average amortization period remaining		2.8 years

Omnibus Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Changes in Restricted Shares

The following table discloses the changes in restricted shares for the nine months ended September 30, 2017:

	Omnibus Plan
	Number of Shares			Weighted Average Grant Date Fair Value
Beginning balance		—		$	—
Granted		58,900		$	20.18
Vested		—		$	—
Forfeited		(400	)	$	20.18
Ending balance outstanding at September 30, 2017		58,500		$	20.18

BYB Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Fair Value Assumptions of Stock Options

The fair values of the stock options were determined using the Black-Scholes-Merton model for Time Options and a Monte Carlo simulation model for Performance Options. The fair values of options under the BYB Plan were determined using the following assumptions as of the grant dates:

	Time Options Grants
	2016			2015
Risk-free interest rate	1.34% - 1.40%			1.68% - 1.85%
Expected term (years)	5.2 - 5.6			5.7 - 6.3
Expected stock price volatility		20.39	%	16.18%-16.55%
Expected dividend yield		0.00	%		0.00	%
Weighted average grant date fair value	$	3.55		$	2.25

	Performance Options Grants
	2016			2015
Risk-free interest rate	Implied forward rates			Implied forward rates
Expected term (years)	Variable			Variable
Expected stock price volatility	20.34% - 20.39%			16.18%-16.55%
Expected dividend yield		0.00	%		0.00	%
Weighted average grant date fair value	$	3.75		$	1.65

Summary of Activity in shares Subjected to Options and Weighted Average Exercise Prices

The following table discloses the activity in shares subject to options and the weighted average exercise prices, in actual dollars, for the nine months ended September 30, 2017:

	BYB Plan
	Number of Shares		Weighted Average Exercise Price		Intrinsic Value		Weighted Average Remaining Contractual Term (in Years)
Beginning balance		1,798,220	$	11.95	$	15,788		9.8
Granted		—
Expired		—
Exercised		—
Forfeited		—
Ending balance outstanding at September 30, 2017		1,798,220	$	11.95	$	16,545		7.9
Exercisable at September 30, 2017		835,263	$	11.31	$	8,310		7.7