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Summary of Capital Expenditures Including Accrued Amounts (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | $ 32,139 | $ 22,998 | $ 75,978 | $ 107,279
Owned and managed |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | 18,701 | 17,687 | 53,630 | 88,418
Managed-only |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | 1,576 | 1,793 | 3,390 | 3,134
Corporate and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total capital expenditures | $ 11,862 | $ 3,518 | $ 18,958 | $ 15,727

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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 -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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