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Components of accumulated other comprehensive loss (Tables) | 3 Months Ended
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Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated balances for each component of AOCI | The following table summarizes the changes in the accumulated balances for each component of accumulated other comprehensive loss ("AOCL"):
| Defined benefit plan and other postretirement liabilities | Unrealized loss on financial instruments | Total, net of tax
Balance, December 31, 2015 | $ | (110,667 | ) | $ | (1,983 | ) | $ | (112,650 | )
Net amount reclassified to net loss | 861 |  | (38 | ) | 823 |
Balance, March 31, 2016 | $ | (109,806 | ) | $ | (2,021 | ) | $ | (111,827 | )
Balance, December 31, 2014 | $ | (115,852 | ) | $ | (1,830 | ) | $ | (117,682 | )
Net amount reclassified to net income | 117 |  | (39 | ) | 78 |
Balance, March 31, 2015 | $ | (115,735 | ) | $ | (1,869 | ) | $ | (117,604 | )
| March 31, 2016 | December 31, 2015
Defined benefit plan liabilities | $ | (120,658 | ) | $ | (121,910 | )
Unrealized loss on financial instruments | (1,481 | ) | (1,435 | )
Other comprehensive loss before income tax effect | (122,139 | ) | (123,345 | )
Income tax effect (1) | 10,312 |  | 10,695 |
Accumulated other comprehensive loss | $ | (111,827 | ) | $ | (112,650 | )
(1) | The allocation of the income tax effect to the components of other comprehensive income is as follows:
| March 31, 2016 | December 31, 2015
Defined benefit plan liabilities | $ | 10,852 |  | $ | 11,243 |
Unrealized loss on financial instruments | (540 | ) | (548 | )
Reclassification out of AOCI | Reclassifications out of AOCL were included in the consolidated statements of operations as follows:
|  | For the three months ended March 31
AOCL Components | Location | 2016 | 2015
Defined benefit plan and other postretirement liabilities | Cost of goods sold | $ | 777 |  | $ | 325 |
| Selling, general and administrative expenses | 125 |  | 183 |
| Other operating expense, net | 350 |  | — |
| Income tax expense | (391 | ) | (391 | )
| Net of tax | $ | 861 |  | $ | 117 |
Unrealized loss on financial instruments | Cost of goods sold | $ | (46 | ) | $ | (47 | )
| Income tax benefit | 8 |  | 8 |
| Net of tax | $ | (38 | ) | $ | (39 | )

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 + Details
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