Stock-Based And Long-Term Incentive Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Stock-Based And Long-Term Incentive Compensation [Abstract]

Summary Of Compensation Expense And Tax Benefits

	Years ended December 31,
	2019		2018		2017
Stock options	$	2,743	$	4,247	$	4,289
Restricted stock units		15,716		19,828		21,899
Cash restricted stock units		298		-		-
Performance share units		935		6,912		9,740
Total compensation expense		19,692		30,987		35,928
Related income taxes		4,569		7,189		8,335
Total compensation expense, net of income taxes	$	15,123	$	23,798	$	27,593

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

	Years ended December 31,
	2019			2018			2017
Weighted average fair value of stock options granted	$	24.60		$	56.12		$	83.60
Black-Scholes-Merton Assumptions:
Risk free interest rate		2.57	%		2.43	%		1.96	%
Expected life (years)		6			6			6
Volatility		56.62	%		51.21	%		48.22	%

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 at beginning of period	643,545	$	182.69	5.0	$	-
Granted	59,286	$	43.6
Exercised	-	$	-
Expired	(33,471)	$	207.88
Outstanding at end of period	669,360	$	169.11	4.7	$	-
Exercisable at end of period	566,946	$	185.48	4.0	$	-
Options expected to vest at end of period	102,414	$	78.47	8.6	$	-

Summary Of Non-Vested Stock Option Activity

	Number of Options	Weighted Average Grant Date Fair Value
Non-vested at beginning of period	141,286	$	80.00
Granted	59,286	$	43.60
Vested	(98,158)	$	112.09
Non-vested at end of period	102,414	$	78.47

Summary Of Restricted Stock Unit Activity

	Number of RSUs	Weighted Average Grant Date Fair Value
Non-vested at beginning of period	342,243	$	132.15
Granted	269,032	$	40.57
Vested	(162,404)	$	127.64
Forfeited	(34,905)	$	85.47
Non-vested at end of period	413,966	$	78.32

Schedule Of ESPP Activity

	Years ended December 31,
	2019		2018		2017
Cash received for shares issued	$	689	$	2,625	$	3,074
Compensation expense	$	122	$	463	$	542
Shares issued		532,292		550,950		360,465

Schedule Of Deferred Compensation Balances

		December 31,
	Balance sheet location	2019		2018
Deferred compensation assets	Intangible and other long-term assets, net	$	15,499	$	13,306
Deferred compensation liabilities, short-term	Accounts payable	$	1,372	$	1,138
Deferred compensation liabilities, long-term	Other long-term liabilities	$	23,466	$	19,766