Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net revenue	$ 8,480,177	$ 9,210,939
Cost of goods sold	7,199,343	8,082,448
Gross margin	1,280,834	1,128,491
Distribution, selling and administrative expenses	1,041,336	1,023,065
Acquisition-related and exit and realignment charges	37,752	30,050
Other operating (income) expense, net	(2,372)	2,225
Operating income	204,118	73,151
Interest expense, net	83,398	98,113
Other expense, net	10,812	3,757
Income (loss) from continuing operations before income taxes	109,908	(28,719)
Income tax provision (benefit)	21,834	(6,135)
Income (loss) from continuing operations	88,074	(22,584)
Loss from discontinued operations, net of tax	(58,203)	(39,787)
Net income (loss)	$ 29,871	$ (62,371)
Continuing operations per basic and diluted (in usd per share)	$ 1.39	$ (0.37)
Discontinued operations per basic and diluted (in usd per share)	(0.92)	(0.66)
Basic and diluted (in usd per share)	$ 0.47	$ (1.03)