SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Goodwill and Other Intangible Assets - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2016	Jan. 01, 2016	Dec. 31, 2014
Goodwill
Balance at the beginning of the period	$ 277,061
Additions	28,415	$ 84,538
Balance at the end of the period	305,476	277,061
Other Intangible Assets
Balance at the beginning of the period	64,629
Additions	21,108	10,253
Amortization	(674)	(26)
Balance at the end of the period	85,063	64,629
Goodwill and Other Intangible Assets
Goodwill	277,061	277,061	$ 192,523
Intangible Assets, Net (Excluding Goodwill)	64,629	64,629	54,402
Impairment loss on goodwill and other intangible assets	0
Visiting Nurse
Goodwill
Balance at the beginning of the period	186,384
Balance at the end of the period	193,824	186,384
Other Intangible Assets
Balance at the beginning of the period	56,182
Balance at the end of the period	60,519	56,182
Goodwill and Other Intangible Assets
Goodwill	186,384	186,384
Intangible Assets, Net (Excluding Goodwill)	56,182	56,182
Personal Care
Goodwill
Balance at the beginning of the period	72,773
Balance at the end of the period	75,003	72,773
Other Intangible Assets
Balance at the beginning of the period	8,447
Balance at the end of the period	9,444	8,447
Goodwill and Other Intangible Assets
Goodwill	72,773	72,773
Intangible Assets, Net (Excluding Goodwill)	8,447	8,447
Healthcare Innovations
Goodwill
Balance at the beginning of the period	17,904
Balance at the end of the period	36,649	17,904
Other Intangible Assets
Balance at the end of the period	15,100
Goodwill and Other Intangible Assets
Goodwill	17,904	17,904
Intangible Assets, Net (Excluding Goodwill)	$ 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	$ 184
Additions	600	180
Amortization	(164)	(16)
Balance at the end of the period	620	184
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	184	184	20
Non-compete Agreements | Visiting Nurse
Other Intangible Assets
Balance at the beginning of the period	92
Balance at the end of the period	69	92
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	92	92
Non-compete Agreements | Personal Care
Other Intangible Assets
Balance at the beginning of the period	92
Balance at the end of the period	69	92
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	92	92
Non-compete Agreements | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	482
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	482
Customer Relationships
Other Intangible Assets
Additions	10,190
Amortization	(502)
Balance at the end of the period	9,688
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	9,688
Customer Relationships | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	9,688
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	9,688
Certificates of Need and Licenses
Other Intangible Assets
Balance at the beginning of the period	46,044
Additions	5,388	6,433
Balance at the end of the period	51,432	46,044
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	46,044	46,044	39,611
Certificates of Need and Licenses | Visiting Nurse
Other Intangible Assets
Balance at the beginning of the period	42,884
Balance at the end of the period	47,252	42,884
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	42,884	42,884
Certificates of Need and Licenses | Personal Care
Other Intangible Assets
Balance at the beginning of the period	3,160
Balance at the end of the period	4,180	3,160
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	3,160	3,160
Trade Names
Other Intangible Assets
Balance at the beginning of the period	18,401
Additions	4,930	3,640
Amortization	(8)	(10)
Balance at the end of the period	23,323	18,401
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	18,401	18,401	$ 14,771
Trade Names | Visiting Nurse
Other Intangible Assets
Balance at the beginning of the period	13,206
Balance at the end of the period	13,198	13,206
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	13,206	13,206
Trade Names | Personal Care
Other Intangible Assets
Balance at the beginning of the period	5,195
Balance at the end of the period	5,195	5,195
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	5,195	$ 5,195
Trade Names | Healthcare Innovations
Other Intangible Assets
Balance at the end of the period	4,930
Goodwill and Other Intangible Assets
Intangible Assets, Net (Excluding Goodwill)	$ 4,930