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Description of Operations - Additional Information (Details) - USD ($)					9 Months Ended
	May 31, 2019	May 14, 2019	May 08, 2019	Apr. 15, 2019	Sep. 30, 2019	Sep. 28, 2018
Description Of Operations Disclosure [Line Items]
Proceeds from IPO					$ 536,879,000	$ 0
Funds to dividend through public offering		$ 52,100,000
Repayment on term loan through public offering		$ 150,000
Common stock dividend ratio				200.00%
Dividends payment, date				May 08, 2019
IPO | Common Stock
Description Of Operations Disclosure [Line Items]
Common stock shares sold			18,518,500
Common stock sold per share			$ 27.00
Share price		$ 25.515
Proceeds from IPO		$ 536,900,000
Underwriters | Common Stock
Description Of Operations Disclosure [Line Items]
Purchase of additional shares upon exercise of options	2,777,775
Underwriting discount per share		$ 1.485
Proceeds from IPO		$ 536,900,000

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