Quarterly Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interim Period, Costs Not Allocable [Line Items]
Net sales									$ 1,790,793	$ 1,895,910	$ 550,771
Gross profit									1,040,403	1,190,212	87,717
Research and development									2,684	2,129	3,456
Selling and administrative expenses									63,674	62,032	52,506
Other expense (income), net									5,203	3,361	(2,104)
Related party Tax Receivable Agreement expense									3,393	86,478	0
Interest expense									127,331	135,061	30,823
Investment Income, Interest									(4,709)	(1,657)	(395)
Net income (loss)									$ 744,602	$ 854,219	$ 7,983
Income (Loss) from Continuing Operations, Per Basic Share									$ 2.58	$ 2.87	$ 0.05
Earnings Per Share, Basic									$ 2.58	$ 2.87	$ 0.03
As Reported
Interim Period, Costs Not Allocable [Line Items]
Net sales	$ 414,612	$ 420,797	$ 480,390	$ 474,994	$ 532,789	$ 454,890	$ 456,332	$ 451,899
Gross profit	235,290	242,300	283,343	279,470	318,430	274,610	290,422	306,750
Research and development	723	611	713	637	601	518	581	429
Selling and administrative expenses	17,346	15,708	15,394	15,226	15,683	14,234	16,239	15,876
Other expense (income), net	4,561	(688)	863	467	828	1,502	(974)	2,005
Related party Tax Receivable Agreement expense	3,393	0	0	0	24,677	0	61,801	0
Interest expense	28,859	31,803	32,969	33,700	34,674	33,855	28,667	37,865
Investment Income, Interest	(1,799)	(1,765)	(731)	(414)	(589)	(562)	(391)	(115)
Net income (loss)	$ 174,922	$ 175,876	$ 196,368	$ 197,436	$ 229,632	$ 199,466	$ 201,448	$ 223,673
Earnings Per Share, Basic	$ 610	$ 610	$ 680	$ 680	$ 790	$ 670	$ 670	$ 740