Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Oct. 01, 2024 USD ($)	Dec. 31, 2024 USD ($) segment country $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) $ / shares	Oct. 18, 2024 USD ($)	Mar. 14, 2023 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of countries in which entity operates | country		80
Number of operating segments | segment		2
Allowances for losses on accounts receivable		$ 6,200	$ 7,900
Uncollected accounts receivable		70,000	124,000
Losses on sale of accounts receivable		1,900
Maximum outstanding amount of accounts receivable					$ 450,000
Net cash proceeds under the Receivables Sale program		168,000
Cash proceeds from collection of accounts receivable		98,000
Merchandise inventories		1,131,879	1,110,606
LIFO inventory amount		658,000	718,000
Current costs or first-in, first-out (FIFO) excess of replacement over stated LIFO value		234,000	233,000
Inventory share basic (in usd per share) | $ / shares				$ 0.93
Inventory share diluted (in usd per share) | $ / shares				$ 0.91
Impairment of goodwill	$ 0	307,112	0	$ 0
Capitalized computer software, net		41,000	47,000
Software amortization		17,000	16,000	14,000
Impairment of long-lived assets		0	0	0
Self-insurance liabilities		27,000	26,000
Contract with customer, liability		80,000	81,000
Depreciation		183,000	188,000	136,000
Research and development expense		13,000	13,000	12,000
Distribution, selling and administrative expenses		1,909,791	1,813,559	1,554,821
Acquisition-related charges		22,000	18,000	48,000
SEC Schedule, 12-09, Reserve, Inventory
Summary Of Significant Accounting Policies [Line Items]
Change in inventory valuation allowance				92,000
Change in inventory valuation allowance, net of tax				70,000
Apria reporting unit
Summary Of Significant Accounting Policies [Line Items]
Impairment of goodwill		307,000
Impairment of goodwill, net of tax		$ 305,000
Impairment of goodwill impact per share | $ / shares		$ 3.97
Patient Direct
Summary Of Significant Accounting Policies [Line Items]
Net book value of dispositions		$ 34,000	36,000	22,000
Rental Equipment | Patient Direct
Summary Of Significant Accounting Policies [Line Items]
Revenue related to equipment		591,000	617,000	447,000
Shipping and Handling
Summary Of Significant Accounting Policies [Line Items]
Distribution, selling and administrative expenses		$ 665,000	$ 641,000	581,000
Other Intangibles
Summary Of Significant Accounting Policies [Line Items]
Useful life		6 years	6 years
Minimum
Summary Of Significant Accounting Policies [Line Items]
Operating lease, renewal term		1 year
Minimum | Software technology
Summary Of Significant Accounting Policies [Line Items]
Computer software, useful life		3 years
Minimum | Other Intangibles
Summary Of Significant Accounting Policies [Line Items]
Useful life		1 year
Maximum
Summary Of Significant Accounting Policies [Line Items]
Operating lease, term of contract		12 months
Operating lease, renewal term		5 years
Maximum | Software technology
Summary Of Significant Accounting Policies [Line Items]
Computer software, useful life		10 years
Maximum | Other Intangibles
Summary Of Significant Accounting Policies [Line Items]
Useful life		15 years
Warehouse equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		3 years
Warehouse equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		15 years
Buildings | Minimum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		5 years
Buildings | Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		40 years
Equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		1 year
Equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		10 years
Leaseholds and Land Improvements | Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment useful life (in years)		15 years
Warehouse Facilities | Minimum
Summary Of Significant Accounting Policies [Line Items]
Operating lease, term of contract		1 year
Warehouse Facilities | Maximum
Summary Of Significant Accounting Policies [Line Items]
Operating lease, term of contract		11 years
Transportation And Material Handling Equipment | Minimum
Summary Of Significant Accounting Policies [Line Items]
Lessor, operating lease, term of contract		3 years
Transportation And Material Handling Equipment | Maximum
Summary Of Significant Accounting Policies [Line Items]
Lessor, operating lease, term of contract		10 years
Patient service equipment | Patient Direct
Summary Of Significant Accounting Policies [Line Items]
Depreciation		$ 127,000	$ 138,000	89,000
Net book value of dispositions		34,000	36,000	$ 22,000
Master Receivables Purchase Agreement
Summary Of Significant Accounting Policies [Line Items]
Restricted cash			14,000
Net cash proceeds		1,700,000	1,400,000
Accounts receivable collected		1,900,000	$ 1,300,000
Master Receivables Purchase Agreement | Other operating (expense) income
Summary Of Significant Accounting Policies [Line Items]
Losses on sale of accounts receivable		$ 11,000
Master Receivables Purchase Agreement | Maximum
Summary Of Significant Accounting Policies [Line Items]
Uncollected accounts receivable						$ 200,000