Stock-Based And Long-Term Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Stock-Based And Long-Term Compensation [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

Compensation Expense	Years ended December 31,
	2016		2015		2014
Stock options	$	4,870	$	3,663	$	3,900
Restricted stock		382		9,219		15,800
Restricted stock units		24,762		19,699		11,282
Performance and strategic performance share units		10,167		12,991		13,092
Total	$	40,181	$	45,572	$	44,074
Tax Benefit	Years ended December 31,
	2016		2015		2014
Stock options	$	1,802	$	1,355	$	1,443
Restricted stock		141		3,411		5,846
Restricted stock units		9,162		7,289		4,174
Total	$	11,105	$	12,055	$	11,463

Summary Of The Valuation Assumptions Used To Calculate The Fair Value Of Stock Option Grants

	Years ended December 31,
	2016			2015			2014
Weighted average fair value of stock options granted	$	3.61		$	6.25		$	6.95
Black-Scholes-Merton Assumptions:
Risk free interest rate		1.46	%		1.33	%		1.42	%
Expected life (years)		5			5			4
Volatility		55.72	%		47.07	%		34.50	%
Dividend yield		3.28			1.30			1.23

Summary Of Stock Option Activity

	Number of Options	Weighted Average Option Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2015	4,591,141	$	23.60	5.3	$	256
Granted	2,121,417	$	9.76
Exercised	(40,723)	$	12.86
Forfeited	(289,820)	$	9.76
Expired	(371,181)	$	27.21
Outstanding as of December 31, 2016	6,010,834	$	19.23	6.0		14,145
Exercisable as of December 31, 2016	3,671,241	$	23.86	4.2	$	1,104
Options expected to vest as of December 31, 2016	2,339,593	$	11.97	8.8	$	13,041

Summary Of Non-Vested Stock Option Activity

	Number of Options	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	1,102,879	$	20.81
Granted	2,121,417	$	9.76
Vested	(594,883)	$	21.54
Forfeited	(289,820)	$	9.76
Non-vested as of December 31, 2016	2,339,593	$	11.97

Summary Of The Status Of Restricted Stock

	Number of Shares	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	292,937	$	23.13
Vested	(291,779)	$	23.13
Forfeited	(1,158)	$	23.03
Non-vested as of December 31, 2016	-	$	-

Summary Of Restricted Stock Unit Activity

	Number of RSUs	Weighted Average Grant Date Fair Value
Non-vested as of December 31, 2015	2,787,889	$	20.41
Granted	2,549,112	$	9.98
Vested	(1,127,930)	$	20.62
Forfeited	(522,779)	$	13.56
Non-vested as of December 31, 2016	3,686,292	$	14.10

Summary Of Employee Stock Purchase Plan Activity Table Text Block

	Years ended December 31,
	2016		2015		2014
Cash received for shares issued	$	3,681	$	4,803	$	4,870
Compensation expense	$	1,492	$	835	$	1,078
Shares issued		290,987		332,467		246,480

Summary of Deferred Compensation Balances Table Text Block

		December 31,
	Balance sheet location	2016		2015
Deferred compensation assets	Intangible and other long-term assets, net	$	12,360	$	11,548
Deferred compensation liabilities, short-term	Accounts payable	$	1,115	$	721
Deferred compensation liabilities, long-term	Other long-term liabilities	$	18,489	$	17,367