Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended							3 Months Ended	12 Months Ended					1 Months Ended	3 Months Ended			12 Months Ended
	Oct. 17, 2011	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012	Sep. 27, 2014 Minimum [Member]	Sep. 27, 2014 Maximum [Member]	Sep. 28, 2013 Adiana Permanent Contraception System [Member]	Sep. 29, 2012 Adiana Permanent Contraception System [Member]	Mar. 30, 2013 Interlace [Member]	Sep. 27, 2014 Interlace [Member]	Sep. 28, 2013 Interlace [Member]	Sep. 29, 2012 Interlace [Member]	Sep. 24, 2011 Interlace [Member] Minimum [Member]	Sep. 24, 2011 Interlace [Member] Maximum [Member]	Jun. 30, 2011 TCT International Co., Ltd. [Member]	Dec. 28, 2013 TCT International Co., Ltd. [Member]	Sep. 28, 2013 TCT International Co., Ltd. [Member]	Sep. 27, 2014 Healthcome [Member]	Sep. 27, 2014 Finance Leases [Member] term Lease	Sep. 27, 2014 Finance Leases [Member] Minimum [Member]	Sep. 27, 2014 Finance Leases [Member] Maximum [Member]	Sep. 27, 2014 Finance Leases [Member] Leasehold Improvements [Member]
Contingent Consideration Earn-Out Payments [Line Items]
Number Of Finance Leases																			2
Payment of contingent consideration		$ 0	$ 43.0	$ 51.7			$ 16.8	$ 8.8	$ 86.9		$ 39.0	$ 47.6				$ 31.1	$ 87.4
Loss Contingency, Damages Awarded, Value	18.8
Contingent payments period										2 years					2 years
Business Acquisition Contingent Consideration At Fair Value At Point In Time													51.8	93.8
Contingent consideration – fair value adjustments									93.8
Accrued contingent payments										3.3								0.7
Contingent consideration – compensation expense		0	80.0	81.0
Property, Plant, and Equipment, Fair Value Disclosure			1.4	0															28.3
Accrued expenses		262.1	272.0																3.0
Accrued lease obligation-long-term		34.1	33.5
Optional Lease Extension Period																				10 years	12 years
Number Of Optional Lease Extensions																			2
Lease Extension Period																			5 years
Property, Plant and Equipment, Useful Life																						35 years
Royalty Based On Revenue Lower Range Percentage					1.00%
Royalty Based On Revenue Upper Range Percentage						35.00%
Operating Lease Expiration Year		2035
Rent Expense Net Of Sublease Income		21.1	19.9	18.3
Operating Leases, Rent Expense, Sublease Rentals		$ 1.8	$ 1.9	$ 3.2