Business Combinations - Schedule of Purchase Price and Nonrecurring Expenses (Details) - USD ($) $ in Thousands			3 Months Ended	4 Months Ended	9 Months Ended
	Aug. 02, 2021	Mar. 12, 2021	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2021
Decipher Biosciences
Statement [Line Items]
Cash transferred		$ 550,515		$ 43,800
Liabilities incurred		44,179
Cash paid in acquisition		594,694
Decipher Biosciences | Acquisition-related Costs
Statement [Line Items]
Cash transferred		270
Liabilities incurred		24,809
Cash paid in acquisition		$ 25,079
HalioDx
Statement [Line Items]
Cash transferred	$ 169,583
Liabilities incurred	4,194
Common stock transferred	147,089
Cash paid in acquisition	320,866
HalioDx | Acquisition-related Costs
Statement [Line Items]
Cash paid in acquisition			$ 1,600		$ 1,600
HalioDx | Acquisition-related Costs | Scenario, Plan
Statement [Line Items]
Cash transferred	0
Liabilities incurred	19,904
Common stock transferred	0
Cash paid in acquisition	$ 19,904