Impairment, Restructuring and Other Exit Costs - Impairment, Restructuring and Other Exit Costs (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring [Line Items]
Impairment, restructuring and other exit costs	$ 145,000,000	$ 333,988,000	$ 26,671,000	$ 27,368,000	$ 0	$ 0	$ 0	$ 0	$ 532,600,000	$ 0	$ 0
Intangible customer relationships
Restructuring [Line Items]
Impairment loss on intangible assets									34,000,000
Severance
Restructuring [Line Items]
Impairment, restructuring and other exit costs									63,940,000
Other exit costs
Restructuring [Line Items]
Impairment, restructuring and other exit costs									1,859,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies
Restructuring [Line Items]
Recognized in 2019									240,000,000.0
Expected to be Incurred	250,400,000								250,400,000
Total impairments									292,600,000
Impairment, restructuring and other exit costs									532,600,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Intangible customer relationships
Restructuring [Line Items]
Impairment loss on intangible assets									33,700,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Investments
Restructuring [Line Items]
Impairment loss on intangible assets									256,800,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Goodwill
Restructuring [Line Items]
Impairment loss on intangible assets	0								2,100,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Severance
Restructuring [Line Items]
Recognized in 2019									63,900,000
Expected to be Incurred	70,000,000.0								70,000,000.0
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Asset impairments
Restructuring [Line Items]
Recognized in 2019									90,400,000
Expected to be Incurred	90,400,000								90,400,000
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Entity liquidation costs (including the recognition of cumulative translation adjustments)
Restructuring [Line Items]
Recognized in 2019									83,700,000
Expected to be Incurred	85,000,000.0								85,000,000.0
Rationalization of Resources, Investments, Real Estate and Overhead Across Various Geographies | Other exit costs
Restructuring [Line Items]
Recognized in 2019									2,000,000.0
Expected to be Incurred	$ 5,000,000.0								$ 5,000,000.0