Acquisitions - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Feb. 28, 2019	Oct. 31, 2018	Mar. 31, 2018	Dec. 29, 2018	Jun. 29, 2019	Mar. 23, 2018
Mountain Valley Acquisition
Business Acquisition [Line Items]
Consideration transferred	$ 80.0	$ 80.4
Post-closing Capital Adjustment	$ (0.4)
Cash paid to sellers				$ 62.5
Cash paid on behalf of sellers for sellers’ transaction expenses				$ 1.8
Crystal Rock Acquisition
Business Acquisition [Line Items]
Consideration transferred			$ 37.7
Cash paid to sellers			20.7
Cash paid on behalf of sellers for sellers’ transaction expenses			0.8
Liabilities incurred			16.2
Purchase price			$ 21.5		$ 21.5	$ 21.5