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Quarterly Unaudited Financial Data | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
QUARTERLY UNAUDITED FINANCIAL DATA | QUARTERLY UNAUDITED FINANCIAL DATA GIBRALTAR INDUSTRIES, INC. QUARTERLY UNAUDITED FINANCIAL DATA (in thousands, except per share data)
| 2016 Quarters Ended
| March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Net sales | $ | 237,671 |  |  | $ | 265,738 |  |  | $ | 272,734 |  |  | $ | 231,838 |  |  | $ | 1,007,981 |
Gross profit | $ | 54,150 |  |  | $ | 68,843 |  |  | $ | 67,887 |  |  | $ | 53,882 |  |  | $ | 244,762 |
Income from operations | $ | 17,601 |  |  | $ | 28,416 |  |  | $ | 26,363 |  |  | $ | 584 |  |  | $ | 72,964 |
Interest expense | $ | 3,691 |  |  | $ | 3,666 |  |  | $ | 3,625 |  |  | $ | 3,595 |  |  | $ | 14,577 |
Net income (loss) from continuing operations | $ | 9,029 |  |  | $ | 18,612 |  |  | $ | 13,786 |  |  | $ | (7,708 | ) |  | $ | 33,719 |
Net loss from discontinued operations | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (44 | ) |  | $ | (44 | )
Total net income (loss) | $ | 9,029 |  |  | $ | 18,612 |  |  | $ | 13,786 |  |  | $ | (7,752 | ) |  | $ | 33,675 |
Income (loss) per share from continuing operations: |  |  |  |  |  |  |  |  |
Basic | $ | 0.29 |  |  | $ | 0.59 |  |  | $ | 0.44 |  |  | $ | (0.24 | ) |  | $ | 1.07 |
Diluted | $ | 0.28 |  |  | $ | 0.58 |  |  | $ | 0.43 |  |  | $ | (0.24 | ) |  | $ | 1.05 |
Loss per share from discontinued operations: |  |  |  |  |  |  |  |  |
Basic | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Diluted | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
For the quarters ended March 31, 2016 and June 30, 2016 presented in the table above, immaterial differences were identified between amounts as presented and amounts required to be recorded in accordance with U.S. generally accepted accounting principles due to errors in the Company's accounting for estimated total contract costs at completion as it is related to revenue recognition under the percentage of completion accounting method. Refer to the Company's Quarterly Report, Form 10-Q, for the quarter ended September 30, 2016 for a complete description of these differences. These differences will be corrected in the Company's future filings. For the quarter ended December 31, 2016 presented in the table above, the net loss from continuing operations includes $4.8 million of income tax expense to correct a discrete tax benefit recorded during the three months ended June 30, 2016 resulting from the sale of its European industrial manufacturing business to a third party.
| 2015 Quarters Ended
| March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Net sales | $ | 200,615 |  |  | $ | 253,171 |  |  | $ | 304,994 |  |  | $ | 282,093 |  |  | $ | 1,040,873 |
Gross profit | $ | 29,915 |  |  | $ | 44,119 |  |  | $ | 61,396 |  |  | $ | 51,546 |  |  | $ | 186,976 |
Income from operations | $ | 8,970 |  |  | $ | 11,201 |  |  | $ | 23,394 |  |  | $ | 4,520 |  |  | $ | 48,085 |
Interest expense | $ | 3,700 |  |  | $ | 3,811 |  |  | $ | 3,878 |  |  | $ | 3,614 |  |  | $ | 15,003 |
Net income from continuing operations | $ | 5,537 |  |  | $ | 4,087 |  |  | $ | 13,632 |  |  | $ | 220 |  |  | $ | 23,476 |
Net loss from discontinued operations | $ | (28 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (28 | )
Total net income | $ | 5,509 |  |  | $ | 4,087 |  |  | $ | 13,632 |  |  | $ | 220 |  |  | $ | 23,448 |
Income per share from continuing operations: |  |  |  |  |  |  |  |  |
Basic | $ | 0.18 |  |  | $ | 0.13 |  |  | $ | 0.44 |  |  | $ | 0.01 |  |  | $ | 0.75 |
Diluted | $ | 0.18 |  |  | $ | 0.13 |  |  | $ | 0.43 |  |  | $ | 0.01 |  |  | $ | 0.74 |
Loss per share from discontinued operations: |  |  |  |  |  |  |  |  |
Basic | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Diluted | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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