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Supplemental Financial Information (Tables) | 3 Months Ended
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Mar. 31, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Schedule Of Consolidating Statements Of Operations | GIBRALTAR INDUSTRIES, INC. CONSOLIDATING STATEMENTS OF OPERATIONS THREE MONTHS ENDED MARCH 31, 2018 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Net sales | $ | — |  |  | $ | 204,467 |  |  | $ | 12,330 |  |  | $ | (1,460 | ) |  | $ | 215,337 |
Cost of sales | — |  |  | 158,584 |  |  | 9,758 |  |  | (1,323 | ) |  | 167,019 |
Gross profit | — |  |  | 45,883 |  |  | 2,572 |  |  | (137 | ) |  | 48,318 |
Selling, general, and administrative expense | 44 |  |  | 32,724 |  |  | 1,707 |  |  | — |  |  | 34,475 |
(Loss) income from operations | (44 | ) |  | 13,159 |  |  | 865 |  |  | (137 | ) |  | 13,843 |
Interest expense (income) | 3,402 |  |  | (84 | ) |  | (49 | ) |  | — |  |  | 3,269 |
Other expense (income) | — |  |  | 28 |  |  | (613 | ) |  | — |  |  | (585 | )
(Loss) income before taxes | (3,446 | ) |  | 13,215 |  |  | 1,527 |  |  | (137 | ) |  | 11,159 |
(Benefit of) provision for income taxes | (965 | ) |  | 3,335 |  |  | 437 |  |  | — |  |  | 2,807 |
Equity in earnings from subsidiaries | 10,970 |  |  | 1,090 |  |  | — |  |  | (12,060 | ) |  | — |
Net income | $ | 8,489 |  |  | $ | 10,970 |  |  | $ | 1,090 |  |  | $ | (12,197 | ) |  | $ | 8,352 |
GIBRALTAR INDUSTRIES, INC. CONSOLIDATING STATEMENTS OF OPERATIONS THREE MONTHS ENDED MARCH 31, 2017 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Net sales | $ | — |  |  | $ | 197,748 |  |  | $ | 11,242 |  |  | $ | (2,385 | ) |  | $ | 206,605 |
Cost of sales | — |  |  | 150,507 |  |  | 8,982 |  |  | (2,139 | ) |  | 157,350 |
Gross profit | — |  |  | 47,241 |  |  | 2,260 |  |  | (246 | ) |  | 49,255 |
Selling, general, and administrative expense | 43 |  |  | 36,506 |  |  | 3,027 |  |  | — |  |  | 39,576 |
(Loss) income from operations | (43 | ) |  | 10,735 |  |  | (767 | ) |  | (246 | ) |  | 9,679 |
Interest expense (income) | 3,402 |  |  | 192 |  |  | (18 | ) |  | — |  |  | 3,576 |
Other expense (income) | — |  |  | 130 |  |  | (76 | ) |  | — |  |  | 54 |
(Loss) income before taxes | (3,445 | ) |  | 10,413 |  |  | (673 | ) |  | (246 | ) |  | 6,049 |
(Benefit of) provision for income taxes | (1,344 | ) |  | 3,378 |  |  | 19 |  |  | — |  |  | 2,053 |
Equity in earnings from subsidiaries | 6,343 |  |  | (692 | ) |  | — |  |  | (5,651 | ) |  | — |
Net income (loss) | $ | 4,242 |  |  | $ | 6,343 |  |  | $ | (692 | ) |  | $ | (5,897 | ) |  | $ | 3,996 |
Schedule Of Consolidating Statements Of Comprehensive Income | IBRALTAR INDUSTRIES, INC. CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME THREE MONTHS ENDED MARCH 31, 2018 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Net income | $ | 8,489 |  |  | $ | 10,970 |  |  | $ | 1,090 |  |  | $ | (12,197 | ) |  | $ | 8,352 |
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment | — |  |  | — |  |  | 110 |  |  | — |  |  | 110 |
Cumulative effect of change in accounting (see Note 2) | — |  |  | (350 | ) |  | — |  |  | — |  |  | (350 | )
Adjustment to retirement benefit liability, net of tax | — |  |  | (5 | ) |  | — |  |  | — |  |  | (5 | )
Adjustment to post employment health care benefit liability, net of tax | — |  |  | 32 |  |  | — |  |  | — |  |  | 32 |
Other comprehensive (loss) income | — |  |  | (323 | ) |  | 110 |  |  | — |  |  | (213 | )
Total comprehensive income | $ | 8,489 |  |  | $ | 10,647 |  |  | $ | 1,200 |  |  | $ | (12,197 | ) |  | $ | 8,139 |
GIBRALTAR INDUSTRIES, INC. CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME THREE MONTHS ENDED MARCH 31, 2017 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Net income (loss) | $ | 4,242 |  |  | $ | 6,343 |  |  | $ | (692 | ) |  | $ | (5,897 | ) |  | $ | 3,996 |
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |
Foreign currency translation adjustment | — |  |  | — |  |  | 679 |  |  | — |  |  | 679 |
Adjustment to retirement benefit liability, net of tax | — |  |  | (3 | ) |  | — |  |  | — |  |  | (3 | )
Adjustment to post employment health care benefit liability, net of tax | — |  |  | 29 |  |  | — |  |  | — |  |  | 29 |
Other comprehensive income | — |  |  | 26 |  |  | 679 |  |  | — |  |  | 705 |
Total comprehensive income (loss) | $ | 4,242 |  |  | $ | 6,369 |  |  | $ | (13 | ) |  | $ | (5,897 | ) |  | $ | 4,701 |
Schedule Of Consolidating Balance Sheets | STRIES, INC. CONSOLIDATING BALANCE SHEETS MARCH 31, 2018 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | 172,930 |  |  | $ | 27,811 |  |  | $ | — |  |  | $ | 200,741 |
Accounts receivable, net | — |  |  | 139,143 |  |  | 6,039 |  |  | — |  |  | 145,182 |
Intercompany balances | 914 |  |  | 3,362 |  |  | (4,276 | ) |  | — |  |  | — |
Inventories | — |  |  | 86,265 |  |  | 3,971 |  |  | — |  |  | 90,236 |
Other current assets | 1,048 |  |  | 2,114 |  |  | 3,550 |  |  | — |  |  | 6,712 |
Total current assets | 1,962 |  |  | 403,814 |  |  | 37,095 |  |  | — |  |  | 442,871 |
Property, plant, and equipment, net | — |  |  | 90,625 |  |  | 3,046 |  |  | — |  |  | 93,671 |
Goodwill | — |  |  | 298,258 |  |  | 23,514 |  |  | — |  |  | 321,772 |
Acquired intangibles | — |  |  | 95,275 |  |  | 8,784 |  |  | — |  |  | 104,059 |
Other assets | — |  |  | 4,770 |  |  | — |  |  | — |  |  | 4,770 |
Investment in subsidiaries | 750,823 |  |  | 62,594 |  |  | — |  |  | (813,417 | ) |  | — |
| $ | 752,785 |  |  | $ | 955,336 |  |  | $ | 72,439 |  |  | $ | (813,417 | ) |  | $ | 967,143 |
Liabilities and Shareholders’ Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable | $ | — |  |  | $ | 76,994 |  |  | $ | 3,697 |  |  | $ | — |  |  | $ | 80,691 |
Accrued expenses | 2,188 |  |  | 49,631 |  |  | 1,435 |  |  | — |  |  | 53,254 |
Billings in excess of cost | — |  |  | 9,280 |  |  | 2,292 |  |  |  |  | 11,572 |
Current maturities of long-term debt | — |  |  | 400 |  |  | — |  |  | — |  |  | 400 |
Total current liabilities | 2,188 |  |  | 136,305 |  |  | 7,424 |  |  | — |  |  | 145,917 |
Long-term debt | 208,642 |  |  | 1,175 |  |  | — |  |  | — |  |  | 209,817 |
Deferred income taxes | — |  |  | 28,918 |  |  | 2,421 |  |  | — |  |  | 31,339 |
Other non-current liabilities | — |  |  | 38,115 |  |  | — |  |  | — |  |  | 38,115 |
Shareholders’ equity | 541,955 |  |  | 750,823 |  |  | 62,594 |  |  | (813,417 | ) |  | 541,955 |
| $ | 752,785 |  |  | $ | 955,336 |  |  | $ | 72,439 |  |  | $ | (813,417 | ) |  | $ | 967,143 |
GIBRALTAR INDUSTRIES, INC. CONSOLIDATING BALANCE SHEETS DECEMBER 31, 2017 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | — |  |  | $ | 192,604 |  |  | $ | 29,676 |  |  | $ | — |  |  | $ | 222,280 |
Accounts receivable, net | — |  |  | 138,903 |  |  | 6,482 |  |  | — |  |  | 145,385 |
Intercompany balances | 324 |  |  | 4,166 |  |  | (4,490 | ) |  | — |  |  | — |
Inventories | — |  |  | 82,457 |  |  | 3,915 |  |  | — |  |  | 86,372 |
Other current assets | 5,415 |  |  | (368 | ) |  | 3,680 |  |  | — |  |  | 8,727 |
Total current assets | 5,739 |  |  | 417,762 |  |  | 39,263 |  |  | — |  |  | 462,764 |
Property, plant, and equipment, net | — |  |  | 93,906 |  |  | 3,192 |  |  | — |  |  | 97,098 |
Goodwill | — |  |  | 298,258 |  |  | 22,816 |  |  | — |  |  | 321,074 |
Acquired intangibles | — |  |  | 97,171 |  |  | 8,597 |  |  | — |  |  | 105,768 |
Other assets | — |  |  | 4,681 |  |  | — |  |  | — |  |  | 4,681 |
Investment in subsidiaries | 739,970 |  |  | 61,746 |  |  | — |  |  | (801,716 | ) |  | — |
| $ | 745,709 |  |  | $ | 973,524 |  |  | $ | 73,868 |  |  | $ | (801,716 | ) |  | $ | 991,385 |
Liabilities and Shareholders’ Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable | $ | — |  |  | $ | 77,786 |  |  | $ | 4,601 |  |  | $ | — |  |  | $ | 82,387 |
Accrued expenses | 5,469 |  |  | 67,746 |  |  | 2,252 |  |  | — |  |  | 75,467 |
Billings in excess of cost | — |  |  | 9,840 |  |  | 2,939 |  |  | — |  |  | 12,779 |
Current maturities of long-term debt | — |  |  | 400 |  |  | — |  |  | — |  |  | 400 |
Total current liabilities | 5,469 |  |  | 155,772 |  |  | 9,792 |  |  | — |  |  | 171,033 |
Long-term debt | 208,521 |  |  | 1,100 |  |  | — |  |  | — |  |  | 209,621 |
Deferred income taxes | — |  |  | 28,907 |  |  | 2,330 |  |  | — |  |  | 31,237 |
Other non-current liabilities | — |  |  | 47,775 |  |  | — |  |  | — |  |  | 47,775 |
Shareholders’ equity | 531,719 |  |  | 739,970 |  |  | 61,746 |  |  | (801,716 | ) |  | 531,719 |
| $ | 745,709 |  |  | $ | 973,524 |  |  | $ | 73,868 |  |  | $ | (801,716 | ) |  | $ | 991,385 |
Schedule Of Condensed Consolidating Statements Of Cash Flows | GIBRALTAR INDUSTRIES, INC. CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2018 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |
Net cash used in operating activities | $ | (6,606 | ) |  | $ | (14,829 | ) |  | $ | (771 | ) |  | $ | — |  |  | $ | (22,206 | )
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |
Net proceeds from sale of property and equipment | — |  |  | 2,823 |  |  | — |  |  | — |  |  | 2,823 |
Purchases of property, plant, and equipment | — |  |  | (1,008 | ) |  | (25 | ) |  | — |  |  | (1,033 | )
Net cash provided by (used in) investing activities | — |  |  | 1,815 |  |  | (25 | ) |  | — |  |  | 1,790 |
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |
Purchase of treasury stock at market prices | (850 | ) |  | — |  |  | — |  |  | — |  |  | (850 | )
Net proceeds from issuance of common stock | 226 |  |  | — |  |  | — |  |  | — |  |  | 226 |
Intercompany financing | 7,230 |  |  | (6,660 | ) |  | (570 | ) |  | — |  |  | — |
Net cash provided by (used in) financing activities | 6,606 |  |  | (6,660 | ) |  | (570 | ) |  | — |  |  | (624 | )
Effect of exchange rate changes on cash | — |  |  | — |  |  | (499 | ) |  | — |  |  | (499 | )
Net decrease in cash and cash equivalents | — |  |  | (19,674 | ) |  | (1,865 | ) |  | — |  |  | (21,539 | )
Cash and cash equivalents at beginning of year | — |  |  | 192,604 |  |  | 29,676 |  |  | — |  |  | 222,280 |
Cash and cash equivalents at end of period | $ | — |  |  | $ | 172,930 |  |  | $ | 27,811 |  |  | $ | — |  |  | $ | 200,741 |
GIBRALTAR INDUSTRIES, INC. CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2017 (in thousands)
| Gibraltar Industries, Inc. |  | Guarantor Subsidiaries |  | Non-Guarantor Subsidiaries |  | Eliminations |  | Total
Cash Flows from Operating Activities |  |  |  |  |  |  |  |  |
Net cash (used in) provided by operating activities | $ | (6,605 | ) |  | $ | 12,141 |  |  | $ | (3,193 | ) |  | $ | — |  |  | $ | 2,343 |
Cash Flows from Investing Activities |  |  |  |  |  |  |  |  |
Cash paid for acquisitions | — |  |  | (18,561 | ) |  | — |  |  | — |  |  | (18,561 | )
Net proceeds from sale of property and equipment | — |  |  | 9,081 |  |  | 152 |  |  | — |  |  | 9,233 |
Purchases of property, plant, and equipment | — |  |  | (1,326 | ) |  | (127 | ) |  | — |  |  | (1,453 | )
Net cash (used in) provided by investing activities | — |  |  | (10,806 | ) |  | 25 |  |  | — |  |  | (10,781 | )
Cash Flows from Financing Activities |  |  |  |  |  |  |  |  |
Purchase of treasury stock at market prices | (922 | ) |  | — |  |  | — |  |  | — |  |  | (922 | )
Net proceeds from issuance of common stock | 11 |  |  | — |  |  | — |  |  | — |  |  | 11 |
Intercompany financing | 7,516 |  |  | (6,398 | ) |  | (1,118 | ) |  | — |  |  | — |
Net cash provided by (used in) financing activities | 6,605 |  |  | (6,398 | ) |  | (1,118 | ) |  | — |  |  | (911 | )
Effect of exchange rate changes on cash | — |  |  | — |  |  | 73 |  |  | — |  |  | 73 |
Net decrease in cash and cash equivalents | — |  |  | (5,063 | ) |  | (4,213 | ) |  | — |  |  | (9,276 | )
Cash and cash equivalents at beginning of year | — |  |  | 143,826 |  |  | 26,351 |  |  | — |  |  | 170,177 |
Cash and cash equivalents at end of period | $ | — |  |  | $ | 138,763 |  |  | $ | 22,138 |  |  | $ | — |  |  | $ | 160,901 |

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