XML 72 R61.htm IDEA: XBRL DOCUMENT v3.10.0.1
EARNINGS PER SHARE (Details) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Numerator:          
Net income (loss) $ 22,302 $ 12,080 $ 20,096 $ (41,820)  
Number of shares outstanding, end of period:          
Unvested restricted stock (in shares) (32) (82) (32) (82)  
Effect of weighted average shares outstanding (in shares) (109) (10) (283) (178)  
Basic weighted average common share outstanding (in shares) 42,779 41,951 42,605 41,783  
Dilutive effect of stock options and other stock awards (in shares) 1,396 1,344 1,333 0  
Diluted weighted average shares outstanding (in shares) 44,175 43,295 43,938 41,783  
Antidilutive potentially issuable shares (in shares) 0 0 2 2,560  
Class A Common Stock          
Number of shares outstanding, end of period:          
Common stock, outstanding shares (in shares) 41,932 41,055 41,932 41,055 41,298
Class B Common Stock          
Number of shares outstanding, end of period:          
Common stock, outstanding shares (in shares) 988 988 988 988 988