Business Segment, Geographic, and Concentration Risk Information - Summary of Depreciation, Amortization and Assets by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Total depreciation and amortization:
Total consolidated depreciation and amortization	$ 1,086	$ 879
Total assets:
Total consolidated assets	297,787		$ 309,932
Oncology Innovation Platform
Total depreciation and amortization:
Total consolidated depreciation and amortization	175	189
Total assets:
Total consolidated assets	156,358		194,183
Global Supply Chain Platform
Total depreciation and amortization:
Total consolidated depreciation and amortization	496	311
Total assets:
Total consolidated assets	81,930		63,598
Commercial Platform
Total depreciation and amortization:
Total consolidated depreciation and amortization	415	$ 379
Total assets:
Total consolidated assets	$ 59,499		$ 52,151