Annual report pursuant to Section 13 and 15(d)

Employee Benefits Plans - Summary of Roll-forward of the MSP Benefit Obligation (Details)

v3.8.0.1
Employee Benefits Plans - Summary of Roll-forward of the MSP Benefit Obligation (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Change in projected benefit obligation:      
Benefit obligation at beginning of year $ 4,543 $ 4,476  
Service cost 200 213 $ 195
Interest cost 140 210 197
Benefits paid (367) (351)  
Recognized actuarial loss adjustment (78) (5) 231
Benefit obligation at end of year 4,438 4,543 $ 4,476
Funded status at end of year $ (4,438) $ (4,543)