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Accrued Expenses | 12 Months Ended
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Dec. 31, 2014
Payables and Accruals [Abstract] |
Accrued Expenses | Accrued Expenses: Accrued expenses consist of the following at December 31, 2014 and 2013 (in thousands):
| December 31,
| 2014 |  | 2013
Employee benefits, payroll and related taxes | $ | 49,072 |  |  | $ | 42,035 |
Taxes other than income taxes and payroll taxes | 10,101 |  |  | 9,747 |
Deferred revenue | 10,370 |  |  | 17,896 |
Deferred income taxes—current(a) | 6,806 |  |  | 2,853 |
Accrued sales commissions | 7,768 |  |  | 7,241 |
Accrued interest payable | 13,212 |  |  | 7,716 |
Accrued utilities | 7,510 |  |  | 8,608 |
Reduction in force accruals(b) | 4,039 |  |  | 39,104 |
Aluminum alkyl supply capacity reduction(b) | 15,777 |  |  | — |
Other | 41,519 |  |  | 41,216 |
Total | $ | 166,174 |  |  | $ | 176,416 |
(a) | See Note 19, “Income Taxes.”
(b) | See Note 20, “Restructuring and Other.”

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + 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 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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