Condensed Consolidating Financial Information (Condensed Consolidating Statements Of Income) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Net revenue	$ 9,210,939	$ 9,418,192
Cost of goods sold	8,082,448	8,347,666
Gross margin	1,128,491	1,070,526
Distribution, selling and administrative expenses	1,023,065	952,865
Goodwill and intangible asset impairment charges	0	413,945
Acquisition-related and exit and realignment charges	30,050	59,101
Goodwill and intangible asset impairment charges	0	439,613
Other operating (income) expense, net	2,225	(3,039)
Other Nonoperating Income (Expense)	(3,757)	(3,765)
Operating income (loss)	73,151	(352,346)
Interest expense (income), net	98,113	70,983
Loss from continuing operations before income taxes	(28,719)	(427,094)
Income tax (benefit) provision	(6,135)	(32,429)
Equity in earnings (loss) of subsidiaries	0	0
Loss from continuing operations	(22,584)	(394,665)
Loss from discontinued operations, net of tax	(39,787)	(42,347)
Net loss	(62,371)	(437,012)
Other comprehensive income (loss), net of tax	(7,095)	(20,528)
Comprehensive loss	(69,466)	(457,540)
Owens & Minor, Inc.
Condensed Financial Statements, Captions [Line Items]
Net revenue	0	0
Cost of goods sold	0	0
Gross margin	0	0
Distribution, selling and administrative expenses	(1,056)	(4,242)
Goodwill and intangible asset impairment charges		0
Acquisition-related and exit and realignment charges	0	0
Goodwill and intangible asset impairment charges	0	0
Other operating (income) expense, net	(379)	0
Other Nonoperating Income (Expense)	1,173	(3,765)
Operating income (loss)	1,435	4,242
Interest expense (income), net	(67,483)	21,896
Loss from continuing operations before income taxes	70,091	(21,419)
Income tax (benefit) provision	0	(5,569)
Equity in earnings (loss) of subsidiaries	(92,675)	(421,162)
Loss from continuing operations	(22,584)	(437,012)
Loss from discontinued operations, net of tax	0	0
Net loss	(22,584)	(437,012)
Other comprehensive income (loss), net of tax	(7,095)	(20,528)
Comprehensive loss	(29,679)	(457,540)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net revenue	9,135,401	9,420,326
Cost of goods sold	8,066,842	8,418,859
Gross margin	1,068,559	1,001,467
Distribution, selling and administrative expenses	909,263	882,224
Goodwill and intangible asset impairment charges		180,006
Acquisition-related and exit and realignment charges	24,757	45,997
Goodwill and intangible asset impairment charges	0	180,006
Other operating (income) expense, net	56,434	3,881
Other Nonoperating Income (Expense)	(2,003)	0
Operating income (loss)	78,105	(110,641)
Interest expense (income), net	147,988	58,265
Loss from continuing operations before income taxes	(71,886)	(168,906)
Income tax (benefit) provision	(5,207)	(31,285)
Equity in earnings (loss) of subsidiaries	(59,710)	(90,771)
Loss from continuing operations	(126,389)	(228,392)
Loss from discontinued operations, net of tax	0	0
Net loss	(126,389)	(228,392)
Other comprehensive income (loss), net of tax	6,890	(14,940)
Comprehensive loss	(119,499)	(243,332)
Non-guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net revenue	956,217	691,073
Cost of goods sold	895,851	618,834
Gross margin	60,366	72,239
Distribution, selling and administrative expenses	118,549	74,883
Goodwill and intangible asset impairment charges		233,939
Acquisition-related and exit and realignment charges	5,293	13,104
Goodwill and intangible asset impairment charges	0	259,607
Other operating (income) expense, net	(53,830)	(6,920)
Other Nonoperating Income (Expense)	(2,927)	0
Operating income (loss)	(9,646)	(242,767)
Interest expense (income), net	17,608	(9,178)
Loss from continuing operations before income taxes	(30,181)	(233,589)
Income tax (benefit) provision	(928)	4,425
Equity in earnings (loss) of subsidiaries	0	0
Loss from continuing operations	(29,253)	(238,014)
Loss from discontinued operations, net of tax	(39,787)	(42,347)
Net loss	(69,040)	(280,361)
Other comprehensive income (loss), net of tax	13,930	(18,873)
Comprehensive loss	(55,110)	(299,234)
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net revenue	(880,679)	(693,207)
Cost of goods sold	(880,245)	(690,027)
Gross margin	(434)	(3,180)
Distribution, selling and administrative expenses	(3,691)	0
Goodwill and intangible asset impairment charges		0
Acquisition-related and exit and realignment charges	0	0
Goodwill and intangible asset impairment charges	0	0
Other operating (income) expense, net	0	0
Operating income (loss)	3,257	(3,180)
Interest expense (income), net	0	0
Loss from continuing operations before income taxes	3,257	(3,180)
Income tax (benefit) provision	0	0
Equity in earnings (loss) of subsidiaries	152,385	511,933
Loss from continuing operations	155,642	508,753
Loss from discontinued operations, net of tax	0	0
Net loss	155,642	508,753
Other comprehensive income (loss), net of tax	(20,820)	33,813
Comprehensive loss	$ 134,822	$ 542,566