SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Other Intangible Assets - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Dec. 29, 2017	Dec. 30, 2016
Goodwill
Balance at the beginning of the period	$ 305,476	$ 277,061
Additions	85,278	28,415
Balance at the end of the period	390,754	305,476
Other Intangible Assets
Balance at the beginning of the period	85,063	64,629
Additions			$ 62,473	$ 21,108
Assets held for sale			(1,290)
Amortization	(724)	(674)
Balance at the end of the period	145,522	85,063
Goodwill and Other Intangible Assets
Goodwill	305,476	277,061	390,754	305,476
Intangible Assets, Net (Excluding Goodwill)	85,063	64,629	145,522	85,063
Home Health
Goodwill
Balance at the beginning of the period	193,824
Balance at the end of the period	272,306	193,824
Other Intangible Assets
Balance at the beginning of the period	60,519
Balance at the end of the period	114,673	60,519
Goodwill and Other Intangible Assets
Goodwill	193,824	193,824	272,306	193,824
Intangible Assets, Net (Excluding Goodwill)	60,519	60,519	114,673	60,519
Other Home based services
Goodwill
Balance at the beginning of the period	75,003
Balance at the end of the period	81,799	75,003
Other Intangible Assets
Balance at the beginning of the period	9,444
Balance at the end of the period	16,377	9,444
Goodwill and Other Intangible Assets
Goodwill	75,003	75,003	81,799	75,003
Intangible Assets, Net (Excluding Goodwill)	9,444	9,444	16,377	9,444
Healthcare Innovations
Goodwill
Balance at the beginning of the period	36,649
Balance at the end of the period	36,649	36,649
Other Intangible Assets
Balance at the beginning of the period	15,100
Balance at the end of the period	14,472	15,100
Goodwill and Other Intangible Assets
Goodwill	36,649	36,649	36,649	36,649
Intangible Assets, Net (Excluding Goodwill)	$ 15,100	15,100	14,472	15,100
Non-compete Agreements
Activity related to goodwill and other intangible assets
Estimated useful life	3 years
Other Intangible Assets
Balance at the beginning of the period	$ 620	184
Additions			490	600
Amortization	(216)	(164)
Balance at the end of the period	894	620
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	620	184	894	620
Non-compete Agreements | Home Health
Other Intangible Assets
Balance at the beginning of the period	69
Balance at the end of the period	420	69
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	69	69	420	69
Non-compete Agreements | Other Home based services
Other Intangible Assets
Balance at the beginning of the period	69
Balance at the end of the period	112	69
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	69	69	112	69
Non-compete Agreements | Healthcare Innovations
Other Intangible Assets
Balance at the beginning of the period	482
Balance at the end of the period	362	482
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	482	482	362	482
Customer Relationships
Other Intangible Assets
Balance at the beginning of the period	9,688
Additions				10,190
Amortization	(508)	(502)
Balance at the end of the period	9,180	9,688
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	9,688	9,688	9,180	9,688
Customer Relationships | Healthcare Innovations
Other Intangible Assets
Balance at the beginning of the period	9,688
Balance at the end of the period	9,180	9,688
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	9,688	9,688	9,180	9,688
Certificates of Need and Licenses
Other Intangible Assets
Balance at the beginning of the period	51,432	46,044
Additions			52,103	5,388
Assets held for sale			(1,290)
Balance at the end of the period	102,245	51,432
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	51,432	46,044	102,245	51,432
Certificates of Need and Licenses | Home Health
Other Intangible Assets
Balance at the beginning of the period	47,252
Balance at the end of the period	92,585	47,252
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	47,252	47,252	92,585	47,252
Certificates of Need and Licenses | Other Home based services
Other Intangible Assets
Balance at the beginning of the period	4,180
Balance at the end of the period	9,660	4,180
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	4,180	4,180	9,660	4,180
Trade Names
Other Intangible Assets
Balance at the beginning of the period	23,323	18,401
Additions			9,880	4,930
Amortization		(8)
Balance at the end of the period	33,203	23,323
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	23,323	18,401	33,203	23,323
Trade Names | Home Health
Other Intangible Assets
Balance at the beginning of the period	13,198
Balance at the end of the period	21,668	13,198
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	13,198	13,198	21,668	13,198
Trade Names | Other Home based services
Other Intangible Assets
Balance at the beginning of the period	5,195
Balance at the end of the period	6,605	5,195
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	5,195	5,195	6,605	5,195
Trade Names | Healthcare Innovations
Other Intangible Assets
Balance at the beginning of the period	4,930
Balance at the end of the period	4,930	4,930
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	$ 4,930	$ 4,930	$ 4,930	$ 4,930