Guarantor and Non-Guarantor Supplemental Information (Schedule of Condensed Consolidating and Combining Statement of Cash Flows (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 29, 2016	Mar. 31, 2017	Mar. 31, 2016
Condensed Cash Flow Statements Captions [Line Items]
Net cash provided by (used in) operating activities		$ 18,526	$ 24,397
Cash flows from investing activities:
Capital expenditures for property and equipment		(23,217)	(12,840)
Capital expenditures for software		(1,506)	(2,526)
Proceeds from the sale of hospitals		4,282	0
Proceeds from other asset sales		0	858
Other investing activities		0	52
Changes in intercompany balances with affiliates, net		0
Net cash provided by (used in) investing activities		(20,441)	(14,456)
Cash flows from financing activities:
Borrowings (repayments) of revolving credit facilities, net		78,000	0
Borrowings of long-term debt		0	20
Repayments of long-term debt		(7,109)	(1,089)
Increase (decrease) in Due to Parent, net		0	(6,486)
Payments of debt issuance costs	$ (29,146)	(47)	0
Cancellation of restricted stock awards for payroll tax withholdings on vested shares		(1,028)	0
Cash distributions to noncontrolling investors		(3,814)	(2,484)
Purchases of shares from noncontrolling investors		0	(12)
Changes in intercompany balances with affiliates, net		0
Net cash provided by (used in) financing activities		66,002	(10,051)
Net change in cash and cash equivalents		64,087	(110)
Cash and cash equivalents at beginning of period		25,455	1,106
Cash and cash equivalents at end of period		89,542	996
Reportable Legal Entities [Member] | Parent Issuer [Member]
Condensed Cash Flow Statements Captions [Line Items]
Net cash provided by (used in) operating activities		(15,121)	0
Cash flows from investing activities:
Capital expenditures for property and equipment		0	0
Capital expenditures for software		0	0
Proceeds from the sale of hospitals		0
Proceeds from other asset sales			0
Other investing activities			0
Changes in intercompany balances with affiliates, net		0
Net cash provided by (used in) investing activities		0	0
Cash flows from financing activities:
Borrowings (repayments) of revolving credit facilities, net		78,000
Borrowings of long-term debt			0
Repayments of long-term debt		(6,550)	0
Increase (decrease) in Due to Parent, net			0
Payments of debt issuance costs		(47)
Cancellation of restricted stock awards for payroll tax withholdings on vested shares		0
Cash distributions to noncontrolling investors		0	0
Purchases of shares from noncontrolling investors			0
Changes in intercompany balances with affiliates, net		47
Net cash provided by (used in) financing activities		71,450	0
Net change in cash and cash equivalents		56,329	0
Cash and cash equivalents at beginning of period		21,609	0
Cash and cash equivalents at end of period		77,938	0
Reportable Legal Entities [Member] | Other Guarantors [Member]
Condensed Cash Flow Statements Captions [Line Items]
Net cash provided by (used in) operating activities		36,105	44,593
Cash flows from investing activities:
Capital expenditures for property and equipment		(9,537)	(11,393)
Capital expenditures for software		(1,269)	(1,849)
Proceeds from the sale of hospitals		0
Proceeds from other asset sales			0
Other investing activities			(52)
Changes in intercompany balances with affiliates, net		(15,901)
Net cash provided by (used in) investing activities		(26,707)	(13,294)
Cash flows from financing activities:
Borrowings (repayments) of revolving credit facilities, net		0
Borrowings of long-term debt			20
Repayments of long-term debt		(469)	(937)
Increase (decrease) in Due to Parent, net			(30,361)
Payments of debt issuance costs		0
Cancellation of restricted stock awards for payroll tax withholdings on vested shares		(1,028)
Cash distributions to noncontrolling investors		0	0
Purchases of shares from noncontrolling investors			0
Changes in intercompany balances with affiliates, net		0
Net cash provided by (used in) financing activities		(1,497)	(31,278)
Net change in cash and cash equivalents		7,901	21
Cash and cash equivalents at beginning of period		3,498	524
Cash and cash equivalents at end of period		11,399	545
Reportable Legal Entities [Member] | Non-Guarantors [Member]
Condensed Cash Flow Statements Captions [Line Items]
Net cash provided by (used in) operating activities		(2,458)	(20,196)
Cash flows from investing activities:
Capital expenditures for property and equipment		(13,680)	(1,447)
Capital expenditures for software		(237)	(677)
Proceeds from the sale of hospitals		4,282
Proceeds from other asset sales			858
Other investing activities			104
Changes in intercompany balances with affiliates, net		0
Net cash provided by (used in) investing activities		(9,635)	(1,162)
Cash flows from financing activities:
Borrowings (repayments) of revolving credit facilities, net		0
Borrowings of long-term debt			0
Repayments of long-term debt		(90)	(152)
Increase (decrease) in Due to Parent, net			23,875
Payments of debt issuance costs		0
Cancellation of restricted stock awards for payroll tax withholdings on vested shares		0
Cash distributions to noncontrolling investors		(3,814)	(2,484)
Purchases of shares from noncontrolling investors			(12)
Changes in intercompany balances with affiliates, net		15,854
Net cash provided by (used in) financing activities		11,950	21,227
Net change in cash and cash equivalents		(143)	(131)
Cash and cash equivalents at beginning of period		348	582
Cash and cash equivalents at end of period		205	451
Eliminations [Member]
Condensed Cash Flow Statements Captions [Line Items]
Net cash provided by (used in) operating activities		0	0
Cash flows from investing activities:
Capital expenditures for property and equipment		0	0
Capital expenditures for software		0	0
Proceeds from the sale of hospitals		0
Proceeds from other asset sales			0
Other investing activities			0
Changes in intercompany balances with affiliates, net		15,901
Net cash provided by (used in) investing activities		15,901	0
Cash flows from financing activities:
Borrowings (repayments) of revolving credit facilities, net		0
Borrowings of long-term debt			0
Repayments of long-term debt		0	0
Increase (decrease) in Due to Parent, net			0
Payments of debt issuance costs		0
Cancellation of restricted stock awards for payroll tax withholdings on vested shares		0
Cash distributions to noncontrolling investors		0	0
Purchases of shares from noncontrolling investors			0
Changes in intercompany balances with affiliates, net		(15,901)
Net cash provided by (used in) financing activities		(15,901)	0
Net change in cash and cash equivalents		0	0
Cash and cash equivalents at beginning of period		0	0
Cash and cash equivalents at end of period		$ 0	$ 0