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No definition available.

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- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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- Definition

Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Revenue from Contracts with Customers (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings	$ (5,290,761)		$ (5,290,761)			$ (5,229,584)
Income before income taxes	45,129	$ 56,265	$ 159,882	$ 183,022
Advanced billings, revenue recognized	$ 162,000
Expected timing of satisfaction period	12 months		12 months
Selling, general and administrative expense
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Amortization expense	$ 4,000		$ 11,000
Other assets
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unamortized contract costs	28,000		28,000
Software
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of products and sales	24,743	24,107	75,257	70,622
Support services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of products and sales	43,259	39,468	$ 125,995	122,889
Support services \| Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Period of recognition			1 year
Support services \| Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Period of recognition			5 years
Business services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of products and sales	291,650	$ 166,984	$ 882,529	$ 470,890
Business services \| Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Period of recognition			1 year
Business services \| Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Period of recognition			5 years
ASC 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings					$ 9,000
ASC 606 \| Increase (decrease)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings	(12,070)		$ (12,070)
Income before income taxes	6,695		27,229
ASC 606 \| Software
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of products and sales	5,000		26,000
ASC 606 \| Software \| Increase (decrease)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cost of products and sales	786		2,758
Income before income taxes	$ 4,000		$ 23,000