Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues [Abstract]
Revenue	$ 64,605	$ 56,168	$ 145,629	$ 103,365
Fertility benefit services revenue
Revenues [Abstract]
Revenue	46,271	45,696	105,704	86,061
Pharmacy benefit services revenue
Revenues [Abstract]
Revenue	$ 18,334	$ 10,472	$ 39,925	$ 17,304