v2.4.0.8
Condensed Consolidating Statements of Income (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]    
Revenue $ 1,625,777 $ 1,195,997
Cost of goods sold 973,893 694,048
Gross margin 651,884 501,949
Facility and warehouse expenses 126,159 100,246
Distribution expenses 137,329 103,857
Selling, general and administrative expenses 184,530 137,056
Restructuring and acquisition related expenses 3,321 1,505
Depreciation and amortization 26,711 17,697
Operating income 173,834 141,588
Other expense (income):    
Interest expense, net 16,118 8,595
Intercompany interest (income) expense, net 0 0
Loss on debt extinguishment 324 0
Change in fair value of contingent consideration liabilities 1,222 (823)
Other (income) expense, net (96) 402
Total other expense, net 15,124 9,820
Income before provision for income taxes 158,710 131,768
Provision for income taxes 54,021 47,176
Equity in earnings of unconsolidated subsidiaries (36) 0
Equity in earnings of subsidiaries 0 0
Net income 104,653 84,592
Parent Company
    
Condensed Financial Statements, Captions [Line Items]    
Revenue 0 0
Cost of goods sold 0 0
Gross margin 0 0
Facility and warehouse expenses 0 0
Distribution expenses 0 0
Selling, general and administrative expenses 7,911 6,554
Restructuring and acquisition related expenses 0 0
Depreciation and amortization 59 60
Operating income (7,970) (6,614)
Other expense (income):    
Interest expense, net 13,669 6,123
Intercompany interest (income) expense, net (12,324) (9,560)
Loss on debt extinguishment 324  
Change in fair value of contingent consideration liabilities 0 0
Other (income) expense, net (15) 51
Total other expense, net 1,654 (3,386)
Income before provision for income taxes (9,624) (3,228)
Provision for income taxes (3,615) (1,224)
Equity in earnings of unconsolidated subsidiaries 0  
Equity in earnings of subsidiaries 110,662 86,596
Net income 104,653 84,592
Guarantor Subsidiaries
    
Condensed Financial Statements, Captions [Line Items]    
Revenue 1,140,320 922,600
Cost of goods sold 680,630 538,170
Gross margin 459,690 384,430
Facility and warehouse expenses 93,100 81,567
Distribution expenses 94,884 75,758
Selling, general and administrative expenses 114,083 93,437
Restructuring and acquisition related expenses 2,988 173
Depreciation and amortization 18,668 13,590
Operating income 135,967 119,905
Other expense (income):    
Interest expense, net 71 136
Intercompany interest (income) expense, net 6,021 5,586
Loss on debt extinguishment 0  
Change in fair value of contingent consideration liabilities 1,390 (126)
Other (income) expense, net (1,761) (712)
Total other expense, net 2,941 5,136
Income before provision for income taxes 133,026 114,769
Provision for income taxes 50,221 43,870
Equity in earnings of unconsolidated subsidiaries 0  
Equity in earnings of subsidiaries 8,746 4,376
Net income 91,551 75,275
Non-Guarantor Subsidiaries
    
Condensed Financial Statements, Captions [Line Items]    
Revenue 514,519 300,403
Cost of goods sold 322,325 182,884
Gross margin 192,194 117,519
Facility and warehouse expenses 33,059 18,679
Distribution expenses 42,445 28,099
Selling, general and administrative expenses 62,536 37,065
Restructuring and acquisition related expenses 333 1,332
Depreciation and amortization 7,984 4,047
Operating income 45,837 28,297
Other expense (income):    
Interest expense, net 2,378 2,336
Intercompany interest (income) expense, net 6,303 3,974
Loss on debt extinguishment 0  
Change in fair value of contingent consideration liabilities (168) (697)
Other (income) expense, net 1,680 1,063
Total other expense, net 10,529 8,070
Income before provision for income taxes 35,308 20,227
Provision for income taxes 7,415 4,530
Equity in earnings of unconsolidated subsidiaries (36)  
Equity in earnings of subsidiaries 0 0
Net income 27,857 15,697
Consolidation, Eliminations
    
Condensed Financial Statements, Captions [Line Items]    
Revenue (29,062) (27,006)
Cost of goods sold (29,062) (27,006)
Gross margin 0 0
Facility and warehouse expenses 0 0
Distribution expenses 0 0
Selling, general and administrative expenses 0 0
Restructuring and acquisition related expenses 0 0
Depreciation and amortization 0 0
Operating income 0 0
Other expense (income):    
Interest expense, net 0 0
Intercompany interest (income) expense, net 0 0
Loss on debt extinguishment 0  
Change in fair value of contingent consideration liabilities 0 0
Other (income) expense, net 0 0
Total other expense, net 0 0
Income before provision for income taxes 0 0
Provision for income taxes 0 0
Equity in earnings of unconsolidated subsidiaries 0  
Equity in earnings of subsidiaries (119,408) (90,972)
Net income $ (119,408) $ (90,972)