Property, Plant, and Equipment - Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 2,727,681	$ 2,740,997	$ 2,776,646
Less: accumulated depreciation	(2,007,934)	(1,955,712)	(1,968,850)
Property, plant, and equipment, net	719,747	785,285	807,796
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	25,030	25,114	25,195
Buildings
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	296,672	303,495	298,665
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	887,496	902,861	868,931
Software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	385,284	384,568	367,981
Tools, dies, and molds
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	867,997	887,442	911,264
Capital leases
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	23,927	24,279	23,970
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 241,275	$ 213,238	$ 280,640

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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