XML 16 R5.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2019
Sep. 30, 2019
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts receivable, current $ 6,846 $ 5,382
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 63,953,000 63,979,000
Common stock, shares issued 63,953,000 63,979,000