Annual report pursuant to Section 13 and 15(d)

Business Combinations - Summary, Pro Forma, Allocation (Details)

v3.8.0.1
Business Combinations - Summary, Pro Forma, Allocation (Details)
$ in Thousands
 12 Months Ended
Jun. 08, 2017
USD ($)
Apr. 20, 2017
USD ($)
Mar. 29, 2017
USD ($)
Feb. 27, 2017
USD ($)
Jan. 16, 2017
USD ($)
Aug. 16, 2016
USD ($)
Dec. 31, 2017
USD ($)
item
Dec. 31, 2016
USD ($)
item
Business Combinations                
Number of acquisitions | item             6 1
Cash consideration             $ 84,090 $ 3,476
Pro Forma Results                
Net sales             1,928,082 1,829,026
Net income             159,440 76,894
Amortization of intangible assets             1,131 3,663
Income tax expense (using normalized 38% ETR)             $ 801 $ 2,628
ETR (as a percent)             38.00% 38.00%
Purchase Price Allocations                
Goodwill             $ 1,077,186 $ 1,045,058
Selling, General and Administrative Expenses                
Business Combinations                
Acquisition related costs             1,300 $ 100
2017 Acquisitions                
Business Combinations                
Purchase price             88,750  
Cash consideration             84,090  
Contingent consideration             2,110  
Deferred purchase price             2,550  
Purchase Price Allocations                
Accounts receivable             21,307  
Inventories             2,231  
Prepaid and other assets             40  
Property and equipment             3,377  
Intangible assets             33,580  
Goodwill             32,128  
Accounts payable             (3,607)  
Accrued liabilities             (306)  
Net assets acquired             88,750  
Valley                
Business Combinations                
Cash consideration           $ 3,500    
Midwest                
Business Combinations                
Purchase price             12,225  
Cash consideration         $ 12,200   12,225  
Revenue and Net Income Since Acquisition Date                
Net Sales             17,122  
Net Income             304  
Purchase Price Allocations                
Accounts receivable             6,576  
Inventories             75  
Property and equipment             655  
Intangible assets             2,740  
Goodwill             3,538  
Accounts payable             (1,359)  
Net assets acquired             12,225  
EcoFoam                
Business Combinations                
Purchase price       $ 22,300     22,325  
Cash consideration       20,200     20,215  
Contingent consideration       2,100     2,110  
Revenue and Net Income Since Acquisition Date                
Net Sales             22,315  
Net Income             1,747  
Purchase Price Allocations                
Accounts receivable             3,819  
Inventories             1,119  
Prepaid and other assets             27  
Property and equipment             1,544  
Intangible assets             6,700  
Goodwill             10,796  
Accounts payable             (1,378)  
Accrued liabilities             (302)  
Net assets acquired             22,325  
MR Insulfoam                
Business Combinations                
Cash consideration       $ 1,500        
Capital                
Business Combinations                
Cash consideration     $ 7,300          
Superior                
Business Combinations                
Purchase price   $ 10,900         10,952  
Cash consideration             10,952  
Revenue and Net Income Since Acquisition Date                
Net Sales             9,508  
Net Income             922  
Purchase Price Allocations                
Accounts receivable             2,012  
Inventories             321  
Prepaid and other assets             1  
Property and equipment             361  
Intangible assets             5,280  
Goodwill             3,662  
Accounts payable             (681)  
Accrued liabilities             (4)  
Net assets acquired             10,952  
Canyon                
Business Combinations                
Purchase price $ 34,400           34,415  
Cash consideration 30,000           31,865  
Deferred purchase price $ 4,400           2,550  
Payments related to the deferred purchase price             4,400  
Revenue and Net Income Since Acquisition Date                
Net Sales             13,333  
Net Income             1,279  
Purchase Price Allocations                
Accounts receivable             8,222  
Inventories             575  
Prepaid and other assets             6  
Property and equipment             460  
Intangible assets             15,220  
Goodwill             10,095  
Accounts payable             (163)  
Net assets acquired             34,415  
All others                
Business Combinations                
Purchase price             8,833  
Cash consideration             8,833  
Revenue and Net Income Since Acquisition Date                
Net Sales             8,412  
Net Income             892  
Purchase Price Allocations                
Accounts receivable             678  
Inventories             141  
Prepaid and other assets             6  
Property and equipment             357  
Intangible assets             3,640  
Goodwill             4,037  
Accounts payable             (26)  
Net assets acquired             $ 8,833