Stock Repurchase and Dividends - Narrative (Details) - USD ($)	Nov. 11, 2019	Sep. 29, 2019	Nov. 05, 2018	Sep. 30, 2018
Subsequent Event [Line Items]
Maximum repurchase amount under stock repurchase program		$ 125,000,000	$ 200,000,000
Remaining authorized repurchase amount				$ 25,000,000
Subsequent Event
Subsequent Event [Line Items]
Quarterly cash dividend declared (in dollars per share)	$ 0.15