XML 181 R21.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Net Income (Loss) Per Share Attributable to Sterling Common Stockholders | 12 Months Ended
--- | ---
Dec. 31, 2018
Earnings Per Share [Abstract] |
Net Income (Loss) Per Share Attributable to Sterling Common Stockholders |
13. | Net Income (Loss) Per Share Attributable to Sterling Common Stockholders
Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive unvested stock awards and warrants using the treasury stock method. The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income (loss) attributable to Sterling common stockholders (amounts in thousands, except per share data):
| Years Ended December 31,
| 2018 |  | 2017 |  | 2016
Numerator: |  |  |  |  |
Net income (loss) attributable to Sterling common stockholders | $ | 25,187 |  |  | $ | 11,617 |  |  | $ | (9,238 | )
Denominator: |  |  |  |  |
Weighted average common shares outstanding — basic | 26,903 |  |  | 26,274 |  |  | 23,140 |
Shares for dilutive unvested stock | 291 |  |  | 438 |  |  | — |
Weighted average common shares outstanding and assumed conversions— diluted | 27,194 |  |  | 26,712 |  |  | 23,140 |
Basic net income (loss) per share attributable to Sterling common stockholders | $ | 0.94 |  |  | $ | 0.44 |  |  | $ | (0.40 | )
Diluted net income (loss) per share attributable to Sterling common stockholders | $ | 0.93 |  |  | $ | 0.43 |  |  | $ | (0.40 | )
In accordance with the treasury stock method, approximately, 0.4 million shares of unvested stock were excluded from the diluted weighted average common shares outstanding in 2016, respectively, as the Company incurred a loss in that year and the impact of such shares would have been antidilutive.

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration