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Long-term incentive plan	9 Months Ended
	Sep. 30, 2017
Compensation Related Costs [Abstract]
Long-term incentive plan	NOTE 6 Long-term incentive plan In June 2001, we established a long-term incentive plan (“LTIP”). Under the plan, at our discretion, we may designate employees to participate and may make annual contributions to the participants’ account. In the nine months ended September 30, 2017, we contributed $0.3 million. For full-year 2016, we contributed $0.6 million. The total amount contributed by us is marked to market quarterly and any unrealized gains (losses) are recognized in other income, net on the Consolidated and Combined Statements of Income. Management will not make any new contributions to the LTIP subsequent to the Separation.  Under this plan, deferred compensation expense was not material in the three months ended September 30, 2017 and $0.3 million in the nine months ended September 30, 2017, and $0.2 million and $0.7 million in the three and nine months ended September 30, 2016, respectively. The deferred compensation liability was $2.0 million and $3.1 million at September 30, 2017 and December 31, 2016, respectively.

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- Definition

The entire disclosure for compensation costs, including compensated absences accruals, compensated absences liability, deferred compensation arrangements and income statement compensation items. Deferred compensation arrangements may include a description of an arrangement with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares (units) issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-URI http://asc.fasb.org/topic&trid=2127225

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