Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 67,030	$ 66,308
Accounts receivable, net	674,706	756,687
Merchandise inventories	1,146,192	1,273,726
Other current assets	79,372	121,926
Current assets of discontinued operations	439,983	319,930
Total current assets	2,407,283	2,538,577
Property and equipment, net	315,427	323,943
Operating lease assets	142,219
Goodwill	393,181	414,122	$ 686,964
Intangible assets, net	285,018	314,175
Due from O&M and subsidiaries	0	0
Advances to and investments in consolidated subsidiaries	0	0
Other assets, net	99,956	84,510
Other assets of discontinued operations	0	98,461
Total assets	3,643,084	3,773,788
Current liabilities
Accounts payable	808,035	1,065,197
Accrued payroll and related liabilities	53,584	38,358
Other current liabilities	231,029	178,930
Current liabilities of discontinued operations	323,511	189,526
Total current liabilities	1,416,159	1,472,011
Long-term debt, excluding current portion	1,508,415	1,647,918
Due to O&M and subsidiaries	0	0
Intercompany debt	0	0
Operating lease liabilities, excluding current portion	117,080
Deferred income taxes	33,280	46,753
Deferred income taxes	40,550	50,852
Other liabilities	98,726	77,690
Other liabilities of discontinued operations	0	6,898
Total liabilities	3,180,930	3,255,369
Equity
Common stock	125,686	124,588
Paid-in capital	251,401	238,773
Retained earnings (deficit)	137,774	200,670
Accumulated other comprehensive loss	(52,707)	(45,612)
Total equity	462,154	518,419
Total liabilities and equity	3,643,084	3,773,788
Owens & Minor, Inc.
Current assets
Cash and cash equivalents	45,187	37,254
Accounts receivable, net	77	0
Merchandise inventories	0	0
Other current assets	180	117
Current assets of discontinued operations	0	0
Total current assets	45,444	37,371
Property and equipment, net	0	0
Operating lease assets	0
Goodwill	0	0
Intangible assets, net	0	0
Due from O&M and subsidiaries	0	0
Advances to and investments in consolidated subsidiaries	1,608,017	1,697,191
Other assets, net	5,948	1,788
Other assets of discontinued operations		0
Total assets	1,659,409	1,736,350
Current liabilities
Accounts payable	0	0
Accrued payroll and related liabilities	0	0
Other current liabilities	4,403	9,641
Current liabilities of discontinued operations	0	0
Total current liabilities	4,403	9,641
Long-term debt, excluding current portion	688,110	595,856
Due to O&M and subsidiaries	487,306	605,558
Intercompany debt	0	0
Operating lease liabilities, excluding current portion	0
Deferred income taxes	0	0
Other liabilities	17,436	6,876
Other liabilities of discontinued operations		0
Total liabilities	1,197,255	1,217,931
Equity
Common stock	125,686	124,588
Paid-in capital	251,401	238,773
Retained earnings (deficit)	137,774	200,670
Accumulated other comprehensive loss	(52,707)	(45,612)
Total equity	462,154	518,419
Total liabilities and equity	1,659,409	1,736,350
Guarantor Subsidiaries
Current assets
Cash and cash equivalents	3,011	5,294
Accounts receivable, net	890,548	804,638
Merchandise inventories	973,529	1,060,083
Other current assets	69,761	117,163
Current assets of discontinued operations	0	0
Total current assets	1,936,849	1,987,178
Property and equipment, net	196,708	201,055
Operating lease assets	142,219
Goodwill	109,276	414,122
Intangible assets, net	198,392	290,814
Due from O&M and subsidiaries	0	880,901
Advances to and investments in consolidated subsidiaries	363,122	93,278
Other assets, net	824,349	56,221
Other assets of discontinued operations		0
Total assets	3,770,915	3,923,569
Current liabilities
Accounts payable	1,558,074	1,190,283
Accrued payroll and related liabilities	38,755	23,071
Other current liabilities	235,955	161,371
Current liabilities of discontinued operations	0	0
Total current liabilities	1,832,784	1,374,725
Long-term debt, excluding current portion	809,565	1,040,664
Due to O&M and subsidiaries	80,093	0
Intercompany debt	816,785	1,246,787
Operating lease liabilities, excluding current portion	117,080
Deferred income taxes	0
Deferred income taxes		29,288
Other liabilities	64,612	51,366
Other liabilities of discontinued operations		0
Total liabilities	3,720,919	3,742,830
Equity
Common stock	0	0
Paid-in capital	174,614	174,614
Retained earnings (deficit)	(88,615)	37,777
Accumulated other comprehensive loss	(36,003)	(31,652)
Total equity	49,996	180,739
Total liabilities and equity	3,770,915	3,923,569
Non-guarantor Subsidiaries
Current assets
Cash and cash equivalents	18,808	23,760
Accounts receivable, net	915,798	415,944
Merchandise inventories	177,853	218,401
Other current assets	78,319	5,914
Current assets of discontinued operations	439,983	319,930
Total current assets	1,630,761	983,949
Property and equipment, net	118,719	122,888
Operating lease assets	0
Goodwill	283,905	0
Intangible assets, net	86,626	23,361
Due from O&M and subsidiaries	0	0
Advances to and investments in consolidated subsidiaries	0	0
Other assets, net	27,750	26,501
Other assets of discontinued operations		98,461
Total assets	2,147,761	1,255,160
Current liabilities
Accounts payable	391,386	350,272
Accrued payroll and related liabilities	14,829	15,287
Other current liabilities	93,243	7,918
Current liabilities of discontinued operations	323,511	189,526
Total current liabilities	822,969	563,003
Long-term debt, excluding current portion	10,740	11,398
Due to O&M and subsidiaries	786,382	67,900
Intercompany debt	752,105	322,101
Operating lease liabilities, excluding current portion	0
Deferred income taxes	40,550	21,564
Other liabilities	16,658	19,448
Other liabilities of discontinued operations		6,898
Total liabilities	2,429,404	1,012,312
Equity
Common stock	0	0
Paid-in capital	123,869	583,869
Retained earnings (deficit)	(388,676)	(319,636)
Accumulated other comprehensive loss	(16,836)	(21,385)
Total equity	(281,643)	242,848
Total liabilities and equity	2,147,761	1,255,160
Eliminations
Current assets
Cash and cash equivalents	24	0
Accounts receivable, net	(1,131,717)	(463,895)
Merchandise inventories	(5,190)	(4,758)
Other current assets	(68,888)	(1,268)
Current assets of discontinued operations	0	0
Total current assets	(1,205,771)	(469,921)
Property and equipment, net	0	0
Operating lease assets	0
Goodwill	0	0
Intangible assets, net	0	0
Due from O&M and subsidiaries	0	(880,901)
Advances to and investments in consolidated subsidiaries	(1,971,139)	(1,790,469)
Other assets, net	(758,091)	0
Other assets of discontinued operations		0
Total assets	(3,935,001)	(3,141,291)
Current liabilities
Accounts payable	(1,141,425)	(475,358)
Accrued payroll and related liabilities	0	0
Other current liabilities	(102,572)	0
Current liabilities of discontinued operations	0	0
Total current liabilities	(1,243,997)	(475,358)
Long-term debt, excluding current portion	0	0
Due to O&M and subsidiaries	(1,353,781)	(673,458)
Intercompany debt	(1,568,890)	(1,568,888)
Operating lease liabilities, excluding current portion	0
Deferred income taxes	0	0
Other liabilities	20	0
Other liabilities of discontinued operations		0
Total liabilities	(4,166,648)	(2,717,704)
Equity
Common stock	0	0
Paid-in capital	(298,483)	(758,483)
Retained earnings (deficit)	477,291	281,859
Accumulated other comprehensive loss	52,839	53,037
Total equity	231,647	(423,587)
Total liabilities and equity	$ (3,935,001)	$ (3,141,291)