| Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |
|---|---|---|---|
| Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2018 | |
| Income Taxes [Abstract] | |||
| Provision for income taxes | $ 2,021 | $ 993 | |
| New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results | $ 1,600 | ||
| Unrecognized Tax Benefits, Period Increase (Decrease) | 500 | $ 200 | |
| Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 200 | ||
| Unrecognized Tax Benefits, Income Tax Penalties Accrued | $ 20 | ||
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- Definition Income Taxes [Abstract] No definition available. 
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of the effect of a change in accounting principle on operating profit or loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of interest expense accrued for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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