Acquisitions and Disposals - Additional Information (Detail) (USD $)	1 Months Ended	6 Months Ended
	Jun. 28, 2013	Jun. 30, 2013
Business Combination Summary Of Acquisition [Abstract]
Number of entities acquired		1
Total purchase price for acquisitions		$ 22,800,000
Acquisition price paid in cash		22,445,000
Acquisition paid in assumed liabilities		355,000
Noncontrolling goodwill		583,000
Purchase price to acquire additional ownership interests in joint ventures		1,600,000
Number of joint ventures in which additional ownership interests were acquired		5
Decrease in noncontrolling interest redeemable		612,000
Reduction in additional paid in capital as a result of the purchase of additional ownership interests		1,000,000
Noncompete Agreements [Member] | Minimum [Member]
Business Combination Summary Of Acquisition [Abstract]
Life of the non-compete agreements		2 years
Noncompete Agreements [Member] | Maximum [Member]
Business Combination Summary Of Acquisition [Abstract]
Life of the non-compete agreements		5 years
Home-based services segment [Member]
Business Combination Summary Of Acquisition [Abstract]
Goodwill Recognized		21,100,000
Noncontrolling goodwill		583,000
Home health agencies [Member]
Business Combination Summary Of Acquisition [Abstract]
Number of entities acquired		19
Hospice agency [Member]
Business Combination Summary Of Acquisition [Abstract]
Number of entities acquired		1
Prepaid acquisition [Member]
Business Combination Summary Of Acquisition [Abstract]
Acquisition price paid in cash	4,500,000
Acquisition date		Jul. 01, 2013
Payments to acquire business recognized as other assets		$ 4,500,000