Commitments and Contingencies Warranty Account Activity (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Beginning balance	$ 41,536	$ 50,742	$ 43,302	$ 54,512
New product warranties	1,568	1,501	3,929	3,905
Other changes/adjustments to warranties	219	1,001	1,901	2,035
Claims activity	(4,248)	(7,613)	(10,599)	(15,003)
Effect of change in exchange rates	735	(174)	1,277	8
Ending balance	39,810	45,457	39,810	45,457
Less: current portion of warranty	25,584	26,825	25,584	26,825
Long-term warranty	$ 14,226	$ 18,632	$ 14,226	$ 18,632

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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-Publisher FASB
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

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Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty.

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Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties.

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Amount of foreign currency translation gain (loss) which decreases (increases) the standard and extended product warranty accrual.

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Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.

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