Earnings per Share - Summary of Weighted Average Number of Basic Common Shares Outstanding and the Calculation of Basic Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Numerator | ||||
| Net income attributable to common stockholders | $ 11,248 | $ 2,800 | $ 22,244 | $ 7,361 |
| Denominator | ||||
| Weighted average number of basic common shares outstanding | 41,717,024 | 41,502,490 | 41,704,071 | 41,502,490 |
| Net income per basic common share attributable to common stockholders | $ 0.27 | $ 0.07 | $ 0.53 | $ 0.18 |
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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