Short-Term Revolving Credit Facilities  | 
6 Months Ended | 
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Sep. 30, 2018  | |
| Short-term Debt [Abstract] | |
| Short-Term Revolving Credit Facilities | 
  Short-Term Revolving Credit Facilities 
Under the Company’s senior secured revolving credit facility described below in Note 9, “Long-Term Debt,” the Company had $8,497 in outstanding borrowings at September 30, 2018. There were no outstanding borrowings at March 31, 2018.
 
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- References No definition available. 
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- Definition The entire disclosure for short-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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