v3.10.0.1
Consolidated Statements of Operations - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Income Statement [Abstract]        
Net revenue $ 215,849 $ 203,178 $ 424,592 $ 387,716
Cost of goods sold 148,992 114,734 286,494 219,976
Gross profit 66,857 88,444 138,098 167,740
Operating costs and expenses:        
Advertising and marketing 8,938 8,111 17,808 15,433
Selling expense 7,751 8,700 15,139 16,812
General and administrative 11,185 15,739 25,746 28,921
Amortization of customer relationships 5,994 5,994 11,989 11,867
Tax receivable agreement liability remeasurement (1,752) 0 (1,752)  
Business combination transaction costs 0 0 47 0
Impairment of property and equipment 0 0 1,417 0
Related party expenses 92 108 184 192
Total operating costs and expenses 32,208 38,652 70,578 73,225
Operating income 34,649 49,792 67,520 94,515
Other expense (income):        
Interest expense, net 9,749 10,035 19,089 19,865
Gain on buyout of tax receivable agreement 0 0 (12,372) 0
Other expense 86 239 169 953
Total other expense 9,835 10,274 6,886 20,818
Income before income taxes 24,814 39,518 60,634 73,697
Income tax expense 194 11,311 6,712 21,291
Net income 24,620 28,207 53,922 52,406
Less: Net income attributable to the non-controlling interest 5,337 9,377 10,799 17,744
Net income attributable to Class A stockholders 19,283 18,830 43,123 34,662
Comprehensive income $ 25,711 $ 27,745 $ 57,964 $ 51,944
Earnings per Class A share:        
Basic (usd per share) $ 0.19 $ 0.19 $ 0.43 $ 0.35
Diluted (usd per share) $ 0.18 $ 0.18 $ 0.41 $ 0.33
Weighted-average shares outstanding:        
Basic (shares) 99,939,642 98,943,690 99,916,161 98,600,075
Diluted (shares) 104,773,094 107,184,341 104,911,474 106,004,898