Business Combinations - Narrative (Details) - USD ($)	1 Months Ended				3 Months Ended
	Dec. 31, 2019	Apr. 30, 2019	Feb. 28, 2019	Apr. 30, 2018	Mar. 31, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Increase (decrease) in fair value of contingent consideration					$ 84,000	$ 674,000
Payment of deferred acquisition-related contingent consideration					884,000	0
Retrofit
Business Acquisition [Line Items]
Total purchase consideration paid in cash				$ 12,400,000
Earn-out consideration obligated to pay (up to)				7,000,000.0
Escrow asset				7,000,000.0
Fair value of contingent consideration				6,200,000
Total purchase consideration				$ 18,600,000
Increase (decrease) in fair value of contingent consideration					100,000
Escrow deposit disbursements		$ 1,800,000
Contingent consideration	$ 2,800,000				2,900,000
myStrength
Business Acquisition [Line Items]
Total purchase consideration paid in cash			$ 30,100,000
Earn-out consideration obligated to pay (up to)			5,000,000.0
Fair value of contingent consideration			3,300,000
Total purchase consideration			33,500,000
Increase (decrease) in fair value of contingent consideration						600,000
Closing adjustment			$ 100,000
Payment of deferred acquisition-related contingent consideration	$ 2,400,000				2,600,000
Acquisition-related costs					$ 200,000
Former Retrofit Stockholders | Retrofit
Business Acquisition [Line Items]
Escrow deposit disbursements		$ 1,300,000
Maximum | Retrofit
Business Acquisition [Line Items]
Increase (decrease) in fair value of contingent consideration						$ 100,000