Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Measurements [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

	Fair Value at June 30, 2019
	Level 1		Level 2		Level 3		Total
Intangible and other long-term assets, net:
Non-qualified deferred compensation assets	$	-	$	14,686	$	-	$	14,686
Accounts payable:
Non-qualified deferred compensation liabilities	$	-	$	1,224	$	-	$	1,224
Other long-term liabilities:
Non-qualified deferred compensation liabilities	$	-	$	21,974	$	-	$	21,974
Total debt	$	885,500	$	-	$	-	$	885,500
	Fair Value at December 31, 2018
	Level 1		Level 2		Level 3		Total
Intangible and other long-term assets, net:
Non-qualified deferred compensation assets	$	376	$	12,930	$	-	$	13,306
Accounts payable:
Non-qualified deferred compensation liabilities	$	-	$	1,138	$	-	$	1,138
Other long-term liabilities:
Non-qualified deferred compensation liabilities	$	-	$	19,766	$	-	$	19,766
Total debt	$	1,084,711	$	-	$	-	$	1,084,711

Fair Value Measurements Used In Testing

	Six Months Ended June 30, 2019
	Impairment		Fair Value
Long-lived assets	$	25,780	$	267,277