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Supplemental Cash Flow Information - Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Net cash provided from operating activities included: |  |
Income taxes refunded from taxing authorities | $ 0 | $ 73
Interest paid | (43,864) | (37,117)
Non-cash investing and financing activities included: |  |
Increase in asset retirement costs capitalized | 1,715 | 1,015
Increase in accrued capital expenditures | $ 39,569 | $ 9,719

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- Definition Amount of asset retirement obligations (ARO) costs incurred (whether capitalized or charged to expense) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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