Restructuring and Related Charges (Tables)

6 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Schedule of restructuring components

The table below sets forth the amounts accrued for the restructuring components and related activity:

	Six Months Ended March 31,
	2017		2018
Balance at beginning of the period	$	13,217	$	3,542
Restructuring charges related to VSP	15,431		320
Charges related to other initiatives	3,295		5,964
Write off charge and other non‑cash activity	(374)		(308)
Cash payments	(24,325)		(9,095)
Other adjustments	(159)		28
Balance at end of the period	$	7,085	$	451