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Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 194,822	$ 199,918	$ 165,793	$ 123,483	$ 138,659	$ 140,429	$ 114,373	$ 103,541	$ 684,016	$ 497,002	$ 281,937
North America
Disaggregation of Revenue [Line Items]
Net sales									630,927
International
Disaggregation of Revenue [Line Items]
Net sales									53,089
Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales									668,095
Part and other sales
Disaggregation of Revenue [Line Items]
Net sales									15,921
Malibu US
Disaggregation of Revenue [Line Items]
Net sales									348,994	293,242	258,942
Malibu US | North America
Disaggregation of Revenue [Line Items]
Net sales									341,190
Malibu US | International
Disaggregation of Revenue [Line Items]
Net sales									7,804
Malibu US | Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales									337,552
Malibu US | Part and other sales
Disaggregation of Revenue [Line Items]
Net sales									11,442
Cobalt
Disaggregation of Revenue [Line Items]
Net sales									206,598	180,315	0
Cobalt | North America
Disaggregation of Revenue [Line Items]
Net sales									196,734
Cobalt | International
Disaggregation of Revenue [Line Items]
Net sales									9,864
Cobalt | Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales									203,825
Cobalt | Part and other sales
Disaggregation of Revenue [Line Items]
Net sales									2,773
Pursuit
Disaggregation of Revenue [Line Items]
Net sales									102,807	0
Pursuit | North America
Disaggregation of Revenue [Line Items]
Net sales									93,003
Pursuit | International
Disaggregation of Revenue [Line Items]
Net sales									9,804
Pursuit | Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales									102,070
Pursuit | Part and other sales
Disaggregation of Revenue [Line Items]
Net sales									737
Malibu Australia
Disaggregation of Revenue [Line Items]
Net sales									25,617	$ 23,445	$ 22,995
Malibu Australia | North America
Disaggregation of Revenue [Line Items]
Net sales									0
Malibu Australia | International
Disaggregation of Revenue [Line Items]
Net sales									25,617
Malibu Australia | Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales									24,648
Malibu Australia | Part and other sales
Disaggregation of Revenue [Line Items]
Net sales									$ 969

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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