Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net earnings	$ 187,823	$ 159,502
Adjustments to reconcile net earnings to net cash flows provided by operating activities:
Depreciation and amortization	59,126	46,430
Amortization of deferred loan costs	4,279	4,155
Provision for uncollectibles	207,046	144,514
Net (gain) loss on disposals and deconsolidations	(2,595)	3,258
Share-based compensation	15,068	7,592
Excess tax benefit from share-based compensation	(3,734)	(3,533)
Deferred income taxes	20,987	2,699
Equity in earnings of unconsolidated affiliates	(13,930)	(6,640)
Net change in fair value of contingent consideration	(2,598)	6,410
Increases (decreases) in cash and cash equivalents, net of acquisitions and dispositions:
Accounts receivable	(228,374)	(157,056)
Supplies inventory	(412)	(110)
Prepaid and other current assets	(23,744)	30,327
Accounts payable	(3,347)	(696)
Accrued expenses and other liabilities	(28,204)	12,648
Other, net	7,714	1,895
Net cash flows provided by operating activities	195,105	251,395
Cash flows from investing activities:
Acquisitions and related expenses	(281,113)	(196,032)
Acquisition of property and equipment	(37,618)	(32,665)
Proceeds from sale of interests in surgery centers	25	0
Purchases of marketable securities	(498)	(1,245)
Maturities of marketable securities	2,738	2,988
Other	(8,749)	(1,987)
Net cash flows used in investing activities	(325,215)	(228,941)
Cash flows from financing activities:
Proceeds from long-term borrowings and revolving credit facility	317,151	7,795
Repayment on long-term borrowings and revolving credit facility	(98,763)	(10,288)
Distributions to noncontrolling interests	(115,589)	(101,033)
Proceeds from issuance of common stock upon exercise of stock options	450	2,080
Repurchase of common stock	(5,688)	(3,684)
Other	(6)	886
Net cash flows provided by (used in) financing activities	97,555	(104,244)
Net decrease in cash and cash equivalents	(32,555)	(81,790)
Cash and cash equivalents, beginning of period	106,660	208,079
Cash and cash equivalents, end of period	74,105	126,289
Supplemental cash flow information:
Interest payments	58,788	56,252
Income tax paid, net of refunds	$ 45,726	$ 7,772