Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impairment of goodwill			$ 82.0
Crescendo Bioscience, Inc. [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impairment of goodwill	$ 80.7
Clinic Asset Group [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impairment of goodwill		$ 1.3
Level 3 [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Estimated fair value of long-term debt	225.3		$ 225.3
Level 3 [Member] | Crescendo Bioscience, Inc. [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impairment of goodwill	$ 80.7
Level 3 [Member] | Clinic Asset Group [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impairment of goodwill		$ 1.3