Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 30, 2016
Activity related to goodwill and other intangible assets
Impairment loss on goodwill and other intangible assets		$ 0
Goodwill
Balance at the beginning of the period	$ 305,476
Additions	83,782
Balance at the end of the period	389,258	305,476
Other Intangible Assets
Balance at the beginning of the period	85,063
Additions	62,035
Amortization	(362)
Balance at the end of the period	146,736	85,063
Home Health
Goodwill
Balance at the end of the period	277,606
Other Intangible Assets
Balance at the end of the period	122,515
Personal Care
Goodwill
Balance at the end of the period	75,003
Other Intangible Assets
Balance at the end of the period	9,435
Healthcare Innovations
Goodwill
Balance at the end of the period	36,649
Other Intangible Assets
Balance at the end of the period	14,786
Non-compete Agreements
Other Intangible Assets
Balance at the beginning of the period	620
Additions	300
Amortization	(108)
Balance at the end of the period	812	620
Non-compete Agreements | Home Health
Other Intangible Assets
Balance at the end of the period	330
Non-compete Agreements | Personal Care
Other Intangible Assets
Balance at the end of the period	60
Non-compete Agreements | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	422
Customer Relationships
Other Intangible Assets
Balance at the beginning of the period	9,688
Amortization	(254)
Balance at the end of the period	9,434	9,688
Customer Relationships | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	9,434
Certificates of Need and Licenses
Other Intangible Assets
Balance at the beginning of the period	51,432
Additions	52,735
Balance at the end of the period	104,167	51,432
Certificates of Need and Licenses | Home Health
Other Intangible Assets
Balance at the end of the period	99,987
Certificates of Need and Licenses | Personal Care
Other Intangible Assets
Balance at the end of the period	4,180
Trade Names
Other Intangible Assets
Balance at the beginning of the period	23,323
Additions	9,000
Balance at the end of the period	32,323	$ 23,323
Trade Names | Home Health
Other Intangible Assets
Balance at the end of the period	22,198
Trade Names | Personal Care
Other Intangible Assets
Balance at the end of the period	5,195
Trade Names | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	$ 4,930