Segment Information - Additional Information (Detail)	12 Months Ended
	Sep. 27, 2019 specialty_hospital segment
Segment Reporting Information [Line Items]
Number of reportable segments | segment	2
India
Segment Reporting Information [Line Items]
Number of multi-disciplinary cancer centers	9
Number of specialty hospitals	1
Sri Lanka
Segment Reporting Information [Line Items]
Number of multi-disciplinary cancer centers	1