Number of directors.

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- Definition

Percentage of cancelled shares in connection with the Spin-off.

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No definition available.

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Stock-Based Compensation (Narrative) (Details) $ in Thousands				3 Months Ended
	Feb. 22, 2017 shares	May 03, 2016 Director shares	Apr. 29, 2016 shares	Mar. 31, 2017 USD ($) shares	Mar. 31, 2016 USD ($)
Community Health Systems, Inc [Member] \| Corporate Allocations [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense included in corporate management fee \| $					$ 62,301
Community Health Systems, Inc [Member] \| Corporate Allocations [Member] \| Share-based Compensation Expense Included in Corporate Management Fee [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation expense included in corporate management fee \| $					$ 1,700
Spin-off from CHS [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of cancelled shares in connection with the Spin-off			66.67%
QHC and CHS Restricted Stock Awards Held By QHC Employees as of Spin-off Date [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation expense \| $				$ 1,700
QHC Restricted Stock Awards Granted Following Spin-off [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted				880,000
Unrecognized stock-based compensation expense \| $				$ 14,400
2016 Stock Award Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock that may be issued under stock award plan			4,700,000
2016 Stock Award Plan [Member] \| Restricted Stock [Member] \| Performance-Based Vesting [Member] \| Executive Officers [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted	230,000	460,000
Share-based compensation, vesting period	3 years	3 years
2016 Stock Award Plan [Member] \| Restricted Stock [Member] \| Time-Based Vesting [Member] \| Executive Officers [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted	230,000
Share-based compensation, vesting period	3 years
2016 Stock Award Plan [Member] \| Restricted Stock [Member] \| Time-Based Vesting [Member] \| Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted	420,000	551,005
Share-based compensation, vesting period	3 years	3 years
2016 Stock Award Plan [Member] \| Restricted Stock [Member] \| Time-Based Vesting [Member] \| Non-Employee Director, Individual [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted		10,000
Share-based compensation, vesting description				The restrictions on the time-vested restricted stock awards will lapse on the first anniversary of the grant date.
Number of directors \| Director		7
2016 Stock Award Plan [Member] \| Restricted Stock, Recoupment Awards [Member] \| Time-Based Vesting [Member] \| Certain Employees [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units, shares granted		106,005
Share-based compensation, vesting description				Restrictions on the recoupment awards lapse in equal installments on the second and third anniversaries of the grant date.