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Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by operating activities | $ 341,325 | $ 375,373 | $ 399,798
Net cash used in investing activities | (124,562) | (122,188) | (409,281)
Net cash provided by (used in) financing activities | (202,291) | (280,765) | 381
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 14,472 | (27,580) | (9,102)
CASH AND CASH EQUIVALENTS, beginning of year | 37,711 | 65,291 | 74,393
CASH AND CASH EQUIVALENTS, end of year | 52,183 | 37,711 | 65,291
Reportable Legal Entities | Parent |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by operating activities | 276,055 | 295,366 | 102,371
Net cash used in investing activities | (55,242) | (19,317) | (93,891)
Net cash provided by (used in) financing activities | (206,446) | (280,337) | (5,151)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 14,367 | (4,288) | 3,329
CASH AND CASH EQUIVALENTS, beginning of year | 11,378 | 15,666 | 12,337
CASH AND CASH EQUIVALENTS, end of year | 25,745 | 11,378 | 15,666
Reportable Legal Entities | Combined Subsidiary Guarantors |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash provided by operating activities | 65,270 | 80,007 | 297,427
Net cash used in investing activities | (69,320) | (69,571) | (212,215)
Net cash provided by (used in) financing activities | 4,155 | (33,728) | (97,643)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 105 | (23,292) | (12,431)
CASH AND CASH EQUIVALENTS, beginning of year | 26,333 | 49,625 | 62,056
CASH AND CASH EQUIVALENTS, end of year | $ 26,438 | 26,333 | 49,625
Consolidating Adjustments and Other |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Net cash used in investing activities |  | (33,300) | (103,175)
Net cash provided by (used in) financing activities |  | $ 33,300 | $ 103,175

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- Definition For the entity and the disposal group, cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. + References No definition available. + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3574-108585 + Details
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