Summary of Significant Accounting Policies - Revenue Recognition, Accounts Receivable and COVID-19 (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Apr. 30, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue Recognition
Net revenue		$ 3,200,177	$ 2,970,595	$ 2,454,535
Unbilled revenue		68,400	38,600
CARES Act funding received	$ 17,200
CARES Act income recognized		0	0	10,595
Significant Acquisitions In 2020
Revenue Recognition
CARES Act funding received	22,200
Business combination, liabilities	$ 7,700
Transferred at Point in Time
Revenue Recognition
Net revenue		2,131,302	2,015,680	1,639,406
Transferred over Time
Revenue Recognition
Net revenue		1,068,875	954,915	815,129
Sleep
Revenue Recognition
Net revenue		1,241,168	1,066,726	891,382
Sleep | Transferred at Point in Time
Revenue Recognition
Net revenue		897,119	794,021	654,130
Sleep | Transferred over Time
Revenue Recognition
Net revenue		344,049	272,705	237,252
Diabetes
Revenue Recognition
Net revenue		660,039	687,091	541,205
Diabetes | Transferred at Point in Time
Revenue Recognition
Net revenue		647,431	670,988	528,082
Diabetes | Transferred over Time
Revenue Recognition
Net revenue		12,608	16,103	13,123
Supplies to the home
Revenue Recognition
Net revenue		192,475	179,326	167,830
Supplies to the home | Transferred at Point in Time
Revenue Recognition
Net revenue		192,475	179,326	167,830
Respiratory
Revenue Recognition
Net revenue		598,820	555,039	458,286
Respiratory | Transferred at Point in Time
Revenue Recognition
Net revenue		32,370	34,342	31,016
Respiratory | Transferred over Time
Revenue Recognition
Net revenue		566,450	520,697	427,270
HME
Revenue Recognition
Net revenue		206,525	220,798	209,741
HME | Transferred at Point in Time
Revenue Recognition
Net revenue		110,197	118,542	113,805
HME | Transferred over Time
Revenue Recognition
Net revenue		96,328	102,256	95,936
Other
Revenue Recognition
Net revenue		301,150	261,615	186,091
Other | Transferred at Point in Time
Revenue Recognition
Net revenue		251,710	218,461	144,543
Other | Transferred over Time
Revenue Recognition
Net revenue		49,440	43,154	41,548
Insurance
Revenue Recognition
Net revenue		1,933,440	1,808,633	1,499,154
Government
Revenue Recognition
Net revenue		852,789	781,975	685,513
Patient pay
Revenue Recognition
Net revenue		$ 413,948	$ 379,987	$ 269,868