Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flow from operating activities:
Net income	$ 309,278	$ 569,680
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	45,074	46,387
Related party Tax Receivable Agreement benefit	(3,346)	0
Deferred income tax provision	16,237	28,696
Interest expense	4,768	4,764
Other charges, net	2,335	17,689
Net change in working capital*	85,098	(80,311)
Repayments Of Related Party Payable	(27,857)	0
Change in long-term assets and liabilities	(14,922)	(2,133)
Net cash provided by operating activities	416,665	584,772
Cash flow from investing activities:
Capital expenditures	(30,688)	(44,053)
Proceeds from the sale of assets	78	98
Net cash used in investing activities	(30,610)	(43,955)
Cash flow from financing activities:
Repurchase of common stock-non-related party	(30,099)	(9,484)
Payments Related to Tax Withholding for Share-based Compensation	(71)	0
Principal repayments on long-term debt	(249,214)	(125,000)
Dividends paid to non-related-party	(7,553)	(15,505)
Dividends paid to related-party	(20,650)	(58,507)
Net cash used in financing activities	(307,587)	(208,496)
Net change in cash and cash equivalents	78,468	332,321
Effect of exchange rate changes on cash and cash equivalents	(562)	(1,037)
Cash and cash equivalents at beginning of period	80,935	49,880
Cash and cash equivalents at end of period	158,841	381,164
* Net change in working capital due to changes in the following components:
Accounts and notes receivable, net	78,408	(20,727)
Inventories	10,371	(19,908)
Prepaid expenses and other current assets	5,437	5,703
Income taxes payable	16,032	(28,152)
Accounts payable and accruals	(25,078)	(17,336)
Interest payable	(72)	109
Net change in working capital	$ 85,098	$ (80,311)