Summary of Significant Accounting Policies -Revenue Recognition (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Revenue Recognition
Accumulated deficit	$ (27,209,514)	$ (13,370,648)
Implicit price concessions		15,775,638
Total net revenues	529,644,247	345,278,337
Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues	316,450,937
Transferred over Time [Member]
Revenue Recognition
Total net revenues	213,193,310
Sleep
Revenue Recognition
Total net revenues	305,388,811
Sleep | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues	224,542,433
Sleep | Transferred over Time [Member]
Revenue Recognition
Total net revenues	80,846,378
Respiratory
Revenue Recognition
Total net revenues	87,197,839
Respiratory | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues	5,779,842
Respiratory | Transferred over Time [Member]
Revenue Recognition
Total net revenues	81,417,997
HME
Revenue Recognition
Total net revenues	89,160,503
HME | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues	45,948,275
HME | Transferred over Time [Member]
Revenue Recognition
Total net revenues	43,212,228
Other
Revenue Recognition
Total net revenues	47,897,094
Other | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues	40,180,387
Other | Transferred over Time [Member]
Revenue Recognition
Total net revenues	7,716,707
Government payor
Revenue Recognition
Total net revenues	168,686,247
Insurance payor
Revenue Recognition
Total net revenues	300,360,975
Patient payor
Revenue Recognition
Total net revenues	60,597,025
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Revenue Recognition
Total net revenues		345,278,337
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		189,871,415
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Transferred over Time [Member]
Revenue Recognition
Total net revenues		155,406,922
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Sleep
Revenue Recognition
Total net revenues		176,288,601
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Sleep | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		123,585,029
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Sleep | Transferred over Time [Member]
Revenue Recognition
Total net revenues		52,703,572
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Respiratory
Revenue Recognition
Total net revenues		71,251,863
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Respiratory | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		4,910,755
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Respiratory | Transferred over Time [Member]
Revenue Recognition
Total net revenues		66,341,108
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | HME
Revenue Recognition
Total net revenues		72,666,296
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | HME | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		36,724,311
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | HME | Transferred over Time [Member]
Revenue Recognition
Total net revenues		35,941,985
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Other
Revenue Recognition
Total net revenues		25,071,577
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Other | Transferred at Point in Time [Member]
Revenue Recognition
Total net revenues		24,651,320
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Other | Transferred over Time [Member]
Revenue Recognition
Total net revenues		420,257
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Government payor
Revenue Recognition
Total net revenues		128,278,922
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Insurance payor
Revenue Recognition
Total net revenues		178,726,197
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Patient payor
Revenue Recognition
Total net revenues		$ 38,273,218
ASU 2014-09
Revenue Recognition
Accumulated deficit			$ 0
ASU 2014-09 | Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Revenue Recognition
Total net revenues	$ (27,515,952)