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Summary of Capital Expenditures Including Accrued Amounts (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | $ 22,998 | $ 58,658 | $ 107,279 | $ 223,518
Owned and managed |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | 17,687 | 41,775 | 88,418 | 195,136
Managed-only |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | 1,793 | 1,074 | 3,134 | 2,973
Corporate and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | $ 3,518 | $ 15,809 | $ 15,727 | $ 25,409

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- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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