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Debt - Debt additional information (Detail) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Senior Notes [Member] |  |
Line of Credit Facility [Line Items] |  |
Interest Rate Percentage | 8.50% | 8.50%
Debt Instrument, Maturity Date | Jun. 01, 2022 |
Six Percent Tangible Equity Units [Member] |  |
Line of Credit Facility [Line Items] |  |
Average interest rate | 6.00% | 6.00%
Debt Instrument, Maturity Date | Dec. 15, 2016 |
Secured Debt [Member] |  |
Line of Credit Facility [Line Items] |  |
Average interest rate | 3.19% | 3.17%
Other indebtedness [Member] |  |
Line of Credit Facility [Line Items] |  |
Variable and fixed interest rates ranging, minimum | 2.19% |
Variable and fixed interest rates ranging, maximum | 5.50% |
Convertible Debt [Member] |  |
Line of Credit Facility [Line Items] |  |
Interest Rate Percentage | 3.75% | 3.75%
Debt Instrument, Maturity Date | Mar. 01, 2020 |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Minimum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Weighted average interest rate of long-term debt outstanding. + References No definition available. + Details
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- Details
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- Details
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- Details
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