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Fair Value Measurements (Schedule of Non-Recurring Losses Recognized Using Fair Value Measurements and the Carrying Value of any Assets and Liabilities Measured Using Fair Value Estimates) (Details) - Nonrecurring - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | --- | ---
Assets |  |  |
Assets, carrying value | $ 46,746 | $ 31,264 | $ 70,032
Assets, non-recurring losses | 0 | 0 | 0
Vacant Owned Facilities |  |  |
Assets |  |  |
Assets, carrying value | 2,496 | 2,537 | 3,863
Assets, non-recurring losses | 0 | 0 | 0
Net Assets of Acquired Businesses |  |  |
Assets |  |  |
Assets, carrying value | 44,250 | 28,727 | 66,169
Assets, non-recurring losses | $ 0 | $ 0 | $ 0

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- Definition Non-Recurring Gains (Losses) On Assets + References No definition available. + Details
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Namespace Prefix: | lcii_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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Balance Type: | debit
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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- Details
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- Details
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- Details
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