Business Combinations - Additional Information (Detail) - Propane Dealer $ in Millions	3 Months Ended
Dec. 31, 2018 USD ($)
Business Acquisition [Line Items]
Aggregate purchase price partnership acquired	$ 0.5
Cash paid	0.3
Deferred liabilities	$ 0.2

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No definition available.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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