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Stock-Based Compensation
 6 Months Ended
Jun. 30, 2015
Share-based Compensation [Abstract]  
Stock-Based Compensation
STOCK-BASED COMPENSATION

A summary of stock-based compensation costs related to the 2014 Equity Incentive Plan and expired plans follows (in millions):
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
 
Successor
 
 
Predecessor
 
Successor
 
 
Predecessor
 
2015
 
 
2014
 
2015
 
 
2014
 
 
 
 
 
 
 
 
 
 
Total stock-based compensation costs:
 
 
 
 
 
 
 
 
 
Restricted stock and restricted stock units
$
—

 
 
$
0.2

 
$
0.1

 
 
$
0.5

Stock options, performance awards and other
0.1

 
 
—

 
0.1

 
 
—

Expense included primarily in selling, general and administrative expense
$
0.1

 
 
$
0.2

 
$
0.2

 
 
$
0.5

 
 
 
 
 
 
 
 
 
 
Total recognized tax benefit
$
—

 
 
$
—

 
$
—

 
 
$
—




As of June 30, 2015, there was $1.0 million of unrecognized compensation cost, adjusted for estimated forfeitures, of which $0.8 million relates to stock options and $0.2 million relates to unvested restricted stock units. Unrecognized compensation cost is expected to be recognized over a weighted-average period of 3 years.

Stock-based compensation cost is measured at the grant date, based on the fair value of the award using the Black-Scholes option pricing model, and is recognized over the vesting period. Stock options vest and become exercisable in equal annual installments over a three or four year period and expire 10 years from the date of grant.

There were 300,000 options granted in the six months ended June 30, 2015. There were no option grants in the six months ended June 30, 2014. Assumptions used to value option grants in the six months ended June 30, 2015 follow:
Risk-free interest rate
1.91%
Expected volatility
75%
Expected option life (years)
6
Weighted-average grant date fair value
$2.89