Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Cash Flow Cash, Cash Equivalents, and Restricted Cash

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Consolidated Statements of Cash Flow Cash, Cash Equivalents, and Restricted Cash - USD ($)
Mar. 31, 2019
Sep. 30, 2018
Mar. 31, 2018
Sep. 30, 2017
Supplemental Cash Flow Elements [Abstract]        
Cash and cash equivalents $ 58,600,000 $ 56,000,000 $ 68,500,000  
Short-term restricted cash included in other current assets 800,000 500,000.0 500,000  
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows $ 59,400,000 $ 56,500,000 $ 69,000,000 $ 66,700,000