Consolidated Statements of Income Statement - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue	$ 13,088,504	$ 11,628,830	$ 12,506,109
Income from continuing operations	1,091,476	640,509	543,415
Less: net income attributable to continuing noncontrolling interest	1,251	1,888	2,800
Revenue	13,088,504	11,628,830	12,506,109
Cost of goods sold	7,766,069	7,035,559	7,654,315
Gross margin	5,322,435	4,593,271	4,851,794
Selling, general and administrative expenses	3,567,732	3,266,065	3,580,300
Restructuring and acquisition related expenses	20,311	66,163	36,979
Loss on disposal of businesses and impairment of net assets held for sale	28	3,174	47,102
Depreciation and amortization	259,992	272,292	290,770
Operating income	1,474,372	985,577	896,643
Other expense (income):
Interest Expense	72,078	103,784	138,504
Loss (gain) on debt extinguishment	(23,564)	(12,751)	128
Interest income and other income, net	(20,400)	(15,953)	(32,755)
Total other expense, net	75,242	100,582	105,621
Income from continuing operations before provision for income taxes	1,399,130	884,995	791,022
Provision for income taxes	330,591	249,498	215,330
Equity in earnings (losses) of unconsolidated subsidiaries	22,937	5,012	(32,277)
Income from continuing operations	1,091,476	640,509	543,415
Net income (loss) from discontinued operations	648	(95)	1,619
Net income	1,092,124	640,414	545,034
Less: net income attributable to continuing noncontrolling interest	1,251	1,888	2,800
Less: net income attributable to discontinued noncontrolling interest	0	103	974
Net income attributable to LKQ stockholders	$ 1,090,873	$ 638,423	$ 541,260
Basic earnings per share: (1)
Income from continuing operations	$ 3.68	$ 2.10	$ 1.75
Net income (loss) from discontinued operations	0.00	(0.00)	0.01
Net income	3.68	2.10	1.76
Less: net income attributable to continuing noncontrolling interest	0.00	0.01	0.01
Less: net income attributable to discontinued noncontrolling interest	0	0.00	0.00
Net income attributable to LKQ stockholders	3.68	2.10	1.75
Diluted earnings per share: (1)
Income from continuing operations	3.67	2.10	1.75
Net income (loss) from discontinued operations	0.00	(0.00)	0.01
Net income	3.67	2.10	1.75
Less: net income attributable to continuing noncontrolling interest	0.00	0.01	0.01
Less: net income attributable to discontinued noncontrolling interest	0	0.00	0.00
Net income attributable to LKQ stockholders	$ 3.66	$ 2.09	$ 1.74
Retained Earnings
Other expense (income):
Net income	$ 1,090,873	$ 638,423	$ 541,260