v2.4.0.6
Supplemental Financial Information (Schedule Of Consolidating Balance Sheets) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 2011
Dec. 31, 2010
Cash and cash equivalents $ 35,327 $ 54,117 $ 104,504 $ 60,866
Accounts receivable, net 105,783 90,595    
Inventories 119,656 109,270    
Other current assets 12,627 14,872    
Total current assets 273,393 268,854    
Property, plant, and equipment, net 150,185 151,974    
Goodwill 349,136 348,326    
Acquired intangibles 94,174 95,265    
Other assets 7,290 7,636    
Total assets 874,178 872,055    
Accounts payable 79,124 67,320    
Accrued expenses 43,624 60,687    
Current maturities of long-term debt 416 417    
Total current liabilities 123,164 128,424    
Long-term debt 206,837 206,746    
Deferred income taxes 55,914 55,801    
Other non-current liabilities 24,472 21,148    
Shareholders' equity 463,791 459,936    
Total liabilities and shareholders' equity 874,178 872,055    
Gibraltar Industries, Inc. [Member]
        
Intercompany balances 24,301 16,762    
Other current assets 1,574 6,339    
Total current assets 25,875 23,101    
Other assets 2,709 2,890    
Investment in subsidiaries 642,765 637,628    
Total assets 671,349 663,619    
Accrued expenses 5,143 1,360    
Total current liabilities 5,143 1,360    
Long-term debt 202,415 202,323    
Shareholders' equity 463,791 459,936    
Total liabilities and shareholders' equity 671,349 663,619    
Guarantor Subsidiaries [Member]
        
Cash and cash equivalents 18,491 34,691 85,883 46,349
Accounts receivable, net 90,022 77,395    
Intercompany balances (2,152) 4,811    
Inventories 109,955 101,637    
Other current assets 9,052 7,676    
Total current assets 225,368 226,210    
Property, plant, and equipment, net 138,168 140,343    
Goodwill 320,772 320,771    
Acquired intangibles 84,843 86,160    
Other assets 4,580 4,745    
Investment in subsidiaries 54,264 52,173    
Total assets 827,995 830,402    
Accounts payable 69,329 59,600    
Accrued expenses 35,139 55,670    
Current maturities of long-term debt 416 417    
Total current liabilities 104,884 115,687    
Long-term debt 4,422 4,423    
Deferred income taxes 52,079 52,065    
Other non-current liabilities 23,845 20,599    
Shareholders' equity 642,765 637,628    
Total liabilities and shareholders' equity 827,995 830,402    
Non-Guarantor Subsidiaries [Member]
        
Cash and cash equivalents 16,836 19,426 18,621 14,517
Accounts receivable, net 15,761 13,200    
Intercompany balances (22,149) (21,573)    
Inventories 9,701 7,633    
Other current assets 2,001 857    
Total current assets 22,150 19,543    
Property, plant, and equipment, net 12,017 11,631    
Goodwill 28,364 27,555    
Acquired intangibles 9,331 9,105    
Other assets 1 1    
Total assets 71,863 67,835    
Accounts payable 9,795 7,720    
Accrued expenses 3,342 3,657    
Total current liabilities 13,137 11,377    
Deferred income taxes 3,835 3,736    
Other non-current liabilities 627 549    
Shareholders' equity 54,264 52,173    
Total liabilities and shareholders' equity 71,863 67,835    
Eliminations [Member]
        
Cash and cash equivalents          
Investment in subsidiaries (697,029) (689,801)    
Total assets (697,029) (689,801)    
Shareholders' equity (697,029) (689,801)    
Total liabilities and shareholders' equity $ (697,029) $ (689,801)