Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Measurements [Abstract]

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

			Fair Value Measurements at Reporting Date Using
	September 30, 2016		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	12,370	$	367	$	12,003		-
Interest rate swaps	$	10,869		-	$	10,869		-
Accounts payable
Non-qualified deferred compensation liabilities	$	1,589		-	$	1,589		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	18,591		-	$	18,591		-
	December 31, 2015		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	11,548	$	368	$	11,180		-
Interest rate swaps	$	6,905		-	$	6,905		-
Accounts payable
Non-qualified deferred compensation liabilities	$	721		-	$	721		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	17,367		-	$	17,367		-

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

	Nine Months Ended September 30, 2016
	Impairment		Fair Value
Goodwill	$	330,500	$	668,864
Property, plant and equipment, net	$	38,977	$	284,457
Intangible assets	$	66,882	$	-