Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Principles of Consolidation - Balance Sheet (Details)

v3.10.0.1
Basis of Presentation and Principles of Consolidation - Balance Sheet (Details) - USD ($)
$ in Millions
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Current assets:        
Cash and cash equivalents $ 101.1 $ 59.0 $ 91.4 $ 88.2
Accounts receivable 199.6 197.8    
Inventories 218.8 208.1    
Prepaid expenses and other current assets 10.2 11.7    
Income tax receivable 4.0 3.6    
Total current assets 533.7 480.2    
Property, Plant and Equipment, Net 143.4 142.9    
Goodwill 4.4 4.5    
Intangible assets, net 1.7 2.0    
Deferred income taxes 8.6 16.1    
Other noncurrent assets 6.8 6.5    
Total assets 698.6 652.2    
Current liabilities:        
Current portion of debt 5.0 5.0    
Accounts payable 121.2 117.1    
Accrued liabilities 30.9 36.0    
Accrued interest 0.2 0.2    
Income tax payable 0.6 0.5    
Total current liabilities 157.9 158.8    
Noncurrent portion of debt 306.3 309.0    
Other noncurrent liabilities 38.2 37.1    
Total liabilities 502.4 504.9    
Global Brass and Copper Holdings, Inc. stockholders’ equity:        
Common stock 0.2 0.2    
Additional paid-in capital 60.4 54.5    
Retained earnings 144.3 97.3    
Treasury Stock, Value (10.0) (6.6)    
Accumulated other comprehensive loss (3.5) (2.9)    
Total Global Brass and Copper Holdings, Inc. stockholders’ equity 191.4 142.5    
Noncontrolling interest 4.8 4.8    
Total equity 196.2 147.3 141.2 95.2
Total liabilities and equity 698.6 652.2    
Accounts receivable, allowance $ 1.1 $ 1.0    
Common stock, shares issued 22,541,416 22,133,764    
Treasury stock, shares 342,031 226,576    
Previously Reported [Member]        
Current assets:        
Cash and cash equivalents   $ 59.0 91.4 88.2
Accounts receivable   197.9    
Inventories   208.1    
Prepaid expenses and other current assets   33.3    
Income tax receivable   3.6    
Total current assets   501.9    
Property, Plant and Equipment, Net   142.9    
Goodwill   4.5    
Intangible assets, net   2.0    
Deferred income taxes   16.1    
Other noncurrent assets   6.5    
Total assets   673.9    
Current liabilities:        
Current portion of debt   5.0    
Accounts payable   117.1    
Accrued liabilities   57.9    
Accrued interest   0.2    
Income tax payable   0.5    
Total current liabilities   180.7    
Noncurrent portion of debt   309.0    
Other noncurrent liabilities   37.1    
Total liabilities   526.8    
Global Brass and Copper Holdings, Inc. stockholders’ equity:        
Common stock   0.2    
Additional paid-in capital   54.5    
Retained earnings   97.1    
Treasury Stock, Value   (6.6)    
Accumulated other comprehensive loss   (2.9)    
Total Global Brass and Copper Holdings, Inc. stockholders’ equity   142.3    
Noncontrolling interest   4.8    
Total equity   147.1   $ 95.2
Total liabilities and equity   673.9    
Accounts receivable, allowance   $ 1.0    
Common stock, shares issued   22,133,764    
Treasury stock, shares   226,576    
Restatement Adjustment [Member] | Accounting Standards Update 2014-09 [Member]        
Current assets:        
Cash and cash equivalents   $ 0.0 $ 0.0  
Accounts receivable   (0.1)    
Inventories   0.0    
Prepaid expenses and other current assets   (21.6)    
Total current assets   (21.7)    
Property, Plant and Equipment, Net   0.0    
Total assets   (21.7)    
Current liabilities:        
Accrued liabilities   (21.9)    
Total current liabilities   (21.9)    
Total liabilities   (21.9)    
Global Brass and Copper Holdings, Inc. stockholders’ equity:        
Retained earnings   0.2    
Total Global Brass and Copper Holdings, Inc. stockholders’ equity   0.2    
Total equity   0.2    
Total liabilities and equity   (21.7)    
Accounts receivable, allowance   $ 0.0    
Common stock, shares issued   0    
Treasury stock, shares   0