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PROPERTY, PLANT AND EQUIPMENT, INTANGIBLE ASSETS AND GOODWILL - Narrative (Detail) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2017 | Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Goodwill included in intangible assets acquired |  | $ 4,070,142 |  | $ 4,066,575 | $ 4,128,887
Total amortization expense related to definite-lived intangible assets |  | $ 49,100 | $ 55,300 |  |
Held-for-sale | Indianapolis, Indiana market |  |  |  |  |
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Cash proceeds from disposal | $ 43,000 |  |  |  |
Disposed of by sale | Indianapolis, Indiana market |  |  |  |  |
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Net gain related to sale | 28,600 |  |  |  |
Certain assets in Atlanta, Georgia |  |  |  |  |
Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Fair value of assets acquired | 39,600 |  |  |  |
Fixed assets acquired | 9,900 |  |  |  |
Intangible assets acquired | 29,500 |  |  |  |
Goodwill included in intangible assets acquired | 2,300 |  |  |  |
Other assets acquired | $ 200 |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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