Net Income / (Loss) per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
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| Earnings Per Share [Abstract] | |||||||||||
| Income / (loss) from continuing operations, net of taxes | $ 14,027 | $ 3,261 | $ (1,337) | $ (1,671) | $ (6,762) | $ (1,136) | $ 2,068 | $ 1,528 | $ 14,280 | $ (4,302) | $ (19,697) |
| Weighted-average common shares outstanding, basic | 86,784,000 | 85,876,000 | 83,909,000 | 81,814,000 | 79,404,000 | 77,645,000 | 77,193,000 | 76,204,000 | 84,594,000 | 77,440,000 | 70,263,000 |
| Basic net income / (loss) per common share (in dollars per share) | $ 0.17 | $ (0.06) | $ (0.28) | ||||||||
| Weighted-average common shares outstanding, diluted | 91,875,000 | 92,472,000 | 83,909,000 | 81,814,000 | 79,404,000 | 77,645,000 | 78,780,000 | 79,598,000 | 89,558,000 | 77,440,000.00 | 70,263,000 |
| Diluted net income / (loss) per common share (in dollars per share) | $ 0.16 | $ (0.06) | $ (0.28) | ||||||||
| Common stock equivalents excluded from net loss per diluted share because their effect would have been anti-dilutive (in shares) | 4,964,000 | 3,312,000 | 2,572,000 | ||||||||
| X | ||||||||||
- References No definition available.
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
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