Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Measurements [Abstract]

Summary of financial assets and liabilities measured at fair value on recurring basis

			Fair Value Measurements at Reporting Date Using
	June 30, 2015		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	11,858	$	368	$	11,490		-
Interest rate swaps	$	4,860		-	$	4,860		-
Accounts payable
Non-qualified deferred compensation liabilities	$	661		-	$	661		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	17,440		-	$	17,440		-
	December 31, 2014		Level 1		Level 2		Level 3
Intangible and other long-term assets, net
Non-qualified deferred compensation assets	$	12,982	$	1,481	$	11,501		-
Interest rate swaps	$	4,183		-	$	4,183		-
Accounts payable
Non-qualified deferred compensation liabilities	$	2,291		-	$	2,291		-
Other long-term liabilities
Non-qualified deferred compensation liabilities	$	14,720		-	$	14,720		-

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

			Fair Value Measurements at Reporting Date Using
	June 30, 2015		(Level 1)		(Level 2)		(Level 3)		Total Losses
Property, plant and equipment, net	$	97,114	$	-	$	-	$	97,114	$	(107,142)
Goodwill	$	329,594		-		-	$	329,594	$	(575,389)
Intangible assets	$	6,345	$	-	$	-	$	6,345	$	(43,114)