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PROPERTY, PLANT AND EQUIPMENT, INTANGIBLE ASSETS AND GOODWILL - Schedule Of Changes In Carrying Amount Of Goodwill (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Goodwill |  |
Beginning balance | $ 4,118,756 | $ 4,051,082
Acquisitions | 2,767 | 77,320
Dispositions |  | (1,606)
Foreign currency | (3,211) | (8,040)
Ending balance | 4,118,312 | 4,118,756
iHM |  |
Goodwill |  |
Beginning balance | 3,330,922 | 3,255,208
Acquisitions | 2,767 | 77,320
Dispositions |  | (1,606)
Foreign currency | (27) | 0
Ending balance | 3,333,662 | 3,330,922
Americas Outdoor |  |
Goodwill |  |
Beginning balance | 507,819 | 507,819
Acquisitions | 0 | 0
Dispositions |  | 0
Foreign currency | 0 | 0
Ending balance | 507,819 | 507,819
International Outdoor |  |
Goodwill |  |
Beginning balance | 198,184 | 206,224
Acquisitions | 0 | 0
Dispositions |  | 0
Foreign currency | (3,184) | (8,040)
Ending balance | 195,000 | 198,184
Other |  |
Goodwill |  |
Beginning balance | 81,831 | 81,831
Acquisitions | 0 | 0
Dispositions |  | 0
Foreign currency | 0 | 0
Ending balance | $ 81,831 | $ 81,831

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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