Represents the maximum amount of time a stock option granted by the Company may be outstanding.

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Amount of decrease in additional paid in capital (APIC) resulting from a tax deficiency associated with a share-based compensation plan other than an employee stock ownership plan (ESOP).

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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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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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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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).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Percentage of vesting of share-based compensation awards.

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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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Value, after forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Number of share options (or share units) exercised during the current period.

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Share-Based Payments (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment expense (benefit)	$ 2,560	$ 6,122	$ 10,048	$ 23,357
Tax shortfall related to share-based payment arrangements			(1,300)
Excess tax benefits related to share-based payment arrangements				$ 1,100
Unrecognized compensation expense related to the unvested portion of share-based payments	$ 22,500		$ 22,500
Compensation expense is expected to be amortized over a weighted-average period			2 years 3 months 6 days
Shares granted (shares)			1,002,000
Stock options expiration period			10 years
Options outstanding and exercisable (shares)	50,000		50,000
Weighted average exercise price of options outstanding and exercisable (usd per share)	$ 22.11		$ 22.11
Weighted average remaining contractual term of outstanding stock options			3 years 5 months 6 days
Aggregate intrinsic value of options outstanding	$ 800		$ 800
Company S Incentive Compensation Programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares issued			$ 23,700
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Shares available for future awards (shares)	2,600,000		2,600,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Shares available for future awards (shares)	104,100		104,100
Stock options exercised (shares)			0	0
Stock options granted (shares)			0	0
Restricted Stock, RSU's And PSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of share vested			$ 15,000	$ 22,900
Minimum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Maximum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Cliff Vesting \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares)			607,606
Fair value of shares issued			$ 14,400
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period			3 years
Cliff Vesting \| Minimum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum vesting percentage of initial performance units awarded			100.00%
Cliff Vesting \| Maximum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (shares)			1,215,212
Maximum vesting percentage of initial performance units awarded			200.00%
Incremental Vesting \| Restricted Stock Units (RSUs) \| Company S Incentive Compensation Programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Shares granted (shares)			394,371
Fair value of shares issued			$ 9,300
Restructuring charges (net) \| Voluntary separation incentive programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment expense (benefit)	$ (183)	$ 0	$ (823)	$ 0