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Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Change in Presentation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales (excluding depreciation and amortization)	$ 406,693	$ 463,809	$ 873,614	$ 924,455
Selling, general and administrative	$ 241,947	252,156	$ 480,680	520,867
Significant Acquisition Costs		1,901		4,647
Global RIM Business
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Significant Acquisition Costs		1,032		1,912
Global Data Center Business
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Significant Acquisition Costs		124		267
Corporate and Other Business
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Significant Acquisition Costs		745		2,468
Correction In Presentation | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Cost of sales (excluding depreciation and amortization)		(1,293)		(2,191)
Selling, general and administrative		(608)		(2,456)
Significant Acquisition Costs		$ 1,901		$ 4,647

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The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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