Amount of accrued liabilities assumed at the acquisition date.

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Amount of tangible assets acquired at the acquisition date.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisitions - Assets (Liabilities) Acquired (Assumed) at Fair Value (Details) - USD ($) $ in Thousands		6 Months Ended
	May 26, 2017	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Assets (liabilities) acquired (assumed) at fair value:
Goodwill		$ 289,884		$ 153,105
Trademarks and trade names
Assets (liabilities) acquired (assumed) at fair value:
Estimated life (in years)		15 years
Assets Or Stock Of Multiple Dealership Locations Acquired
Assets (liabilities) acquired (assumed) at fair value:
Accounts receivable		$ 1,522	$ 944
Inventory		84,211	25,663
Property and equipment		792	635
Other assets		46	142
Accrued liabilities		(2,872)	(2,277)
Total tangible net assets acquired		83,699	25,107
Intangible assets acquired		793	1,349
Goodwill		132,119	33,795
Purchase price		216,611	60,251
Assets Or Stock Of Multiple Dealership Locations Acquired \| Membership and customer lists
Assets (liabilities) acquired (assumed) at fair value:
Intangible assets acquired		$ 793	$ 1,349
Assets Or Stock Of Multiple Dealership Locations Acquired \| Membership and customer lists \| Minimum
Assets (liabilities) acquired (assumed) at fair value:
Estimated life (in years)		4 years	4 years
Assets Or Stock Of Multiple Dealership Locations Acquired \| Membership and customer lists \| Maximum
Assets (liabilities) acquired (assumed) at fair value:
Estimated life (in years)		7 years	7 years
Gander Mountain and Overton's
Assets (liabilities) acquired (assumed) at fair value:
Inventory	$ 9,965
Prepaid expenses and other assets	42
Property and equipment	3,780
Accrued liabilities	(373)
Total tangible net assets acquired	13,414
Intangible assets acquired	18,400
Goodwill	4,660
Purchase price	36,474
Contingent consideration unpaid at June 30, 2017	(1,025)
Gander Mountain and Overton's \| Trademarks and trade names
Assets (liabilities) acquired (assumed) at fair value:
Intangible assets acquired	$ 17,900
Estimated life (in years)	15 years
Gander Mountain and Overton's \| Membership and customer lists
Assets (liabilities) acquired (assumed) at fair value:
Intangible assets acquired	$ 500
Estimated life (in years)	6 years