Revenue Recognition and Accounts Receivable (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenue Recognition
Total net revenues		$ 232,116	$ 124,154	$ 423,555	$ 243,652
CARES Act Recoupable Advance Payment	$ 45,800
CARES Act Provider Relief Funds	$ 17,200
Total CARES Act funds		63,000		63,000
Unbilled revenue		16,800		16,800		$ 8,600
Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		160,965	72,996	289,938	141,952
Transferred over Time [Member]
Revenue Recognition
Total net revenues		71,151	51,158	133,617	101,700
Sleep
Revenue Recognition
Total net revenues		107,065	69,377	198,628	134,561
Sleep | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		84,421	50,433	153,315	97,560
Sleep | Transferred over Time [Member]
Revenue Recognition
Total net revenues		22,644	18,944	45,313	37,001
Supplies to the home
Revenue Recognition
Total net revenues		34,240	1,915	67,579	3,944
Supplies to the home | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		34,240	1,915	67,579	3,944
HME
Revenue Recognition
Total net revenues		25,989	20,438	49,745	41,170
HME | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		12,727	10,236	24,306	20,725
HME | Transferred over Time [Member]
Revenue Recognition
Total net revenues		13,262	10,202	25,439	20,445
Respiratory
Revenue Recognition
Total net revenues		48,970	21,454	76,745	43,162
Respiratory | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		18,114	1,445	20,882	2,724
Respiratory | Transferred over Time [Member]
Revenue Recognition
Total net revenues		30,856	20,009	55,863	40,438
Other
Revenue Recognition
Total net revenues		15,852	10,970	30,858	20,815
Other | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		11,463	8,967	23,856	16,999
Other | Transferred over Time [Member]
Revenue Recognition
Total net revenues		4,389	2,003	7,002	3,816
Insurance Payor [Member]
Revenue Recognition
Total net revenues		148,165	68,909	262,616	136,626
Government payor
Revenue Recognition
Total net revenues		60,513	40,578	111,758	78,679
Patient payor
Revenue Recognition
Total net revenues		$ 23,438	$ 14,667	$ 49,181	$ 28,347