XML 111 R98.htm IDEA: XBRL DOCUMENT v3.10.0.1
EARNINGS PER SHARE (Detail) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Numerator:                      
Net income (loss) attributable to common stockholders                 $ 6,420 $ (21,799) $ (6,849)
Denominator:                      
Shares to be issued - acquisition (in shares)                 103 0 0
Unvested restricted stock (in shares)                 (9) (38) (88)
Effect of weighted average shares outstanding (in shares)                 (338) (402) (239)
Weighted average common shares outstanding (in shares)                 42,688 41,846 41,233
Dilutive effect of stock options and stock awards (in shares)                 1,480 0 0
Diluted weighted average shares outstanding (in shares) 42,936 44,175 43,916 42,370 43,394 43,295 41,811 41,584 44,168 41,846 41,233
Antidilutive potentially issuable shares (in shares)                 2 2,219 2,442
Class A Common Stock                      
Denominator:                      
Common stock, outstanding shares (in shares) 41,944       41,298       41,944 41,298 40,572
Class B Common Stock                      
Denominator:                      
Common stock, outstanding shares (in shares) 988       988       988 988 988