Common stock exchange ratio.

No definition available.

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- Definition

Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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-Subparagraph (a)(1)

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- Definition

Percentage of vesting of share-based compensation awards.

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- Definition

Intrinsic value of equity-based compensation awards vested. Excludes stock and unit options.

+ References

No definition available.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Section D

-Subsection 2

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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).

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. Used to reflect the noncurrent portion of the liabilities (due beyond one year; or beyond one operating cycle if longer).

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-Topic 210

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Equity-based Compensation - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 12, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock exchange ratio	2.41qsp_CommonStockExchangeRatio
Vesting period	5 years
Stock options, expiration period	10 years
Portion of options vesting on each anniversary date, vesting percentage	20.00%
Expected term of grant options		6 years 9 months 29 days	5 years 6 months
Fair value of options granted	$ 7.17	$ 5.23	$ 3.80
Total intrinsic value of stock options exercised	$ 4,900,000	$ 25,300,000	$ 5,700,000
Unrecognized compensation cost	45,800,000
Unrecognized compensation cost, recognition period	1 year 8 months 12 days
Share-based compensation liability	34,800,000
SARs cash settlements	0	0	0
Weighted average grant date fair value of nonvested shares granted	$ 38.99	$ 22.74	$ 6.55
Total intrinsic value of RSU grants which vested and settled		800,000
RSU vested during period	0		0
Unrecognized compensation cost, recognition period	7 years 1 month 6 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term of grant options	1 year
Minimum [Member] \| U.S. Treasury Yield [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term of grant options	3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term of grant options	6 years 8 months 16 days
Maximum [Member] \| U.S. Treasury Yield [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term of grant options	5 years
First Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of options vesting on each anniversary date, vesting percentage	20.00%
Second Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of options vesting on each anniversary date, vesting percentage	40.00%
Third Anniversary [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion of options vesting on each anniversary date, vesting percentage	100.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 2,000,000
Unrecognized compensation cost, recognition period	8 months 12 days
2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under the Plan				15,000,000