Description of Business and Basis of Presentation (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to cash and cash equivalents	$ (675,972)	$ (650,557)	$ (728,223)	$ (1,054,118)
Increase to accounts receivable	431,580	476,583
Increase to short-term finance receivables	918,974	918,383
Increase to other current assets and prepayments	61,039	67,400
Decrease to property, plant and equipment, net	(309,491)	(330,088)
Decrease to long-term finance receivables	$ (693,589)	(760,657)
Restatement Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Reduction to cash and cash equivalents			$ 26,000	$ 25,000
Increase to accounts receivable		19,000
Increase to short-term finance receivables		17,000
Increase to other current assets and prepayments		3,000
Decrease to property, plant and equipment, net		3,000
Decrease to long-term finance receivables		2,000
Other Noncurrent Assets | Accounting Standards Update 2015-03
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Debt issuance costs, reclassified		(18,000)
Long-term Debt | Accounting Standards Update 2015-03
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Debt issuance costs, reclassified		$ 18,000