Intangible Assets (Changes in Intangible Assets Other Than Goodwill) (Details) $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($)
Intangible Assets And Goodwill [Line Items]
Beginning balance, Indefinite	$ 956,836
Beginning balance, Definite	172,351
Beginning balance, total	1,129,187
Assets held for sale (See Note 1)	(35,883)
Dispositions	(79,417)
Acquisitions (See Note 3)	26,291
Amortization	(14,783)
Other	(1,934)
Ending balance, Indefinite	868,960
Ending balance, Definite	154,501
Ending balance, total	1,023,461
Definite-Lived
Intangible Assets And Goodwill [Line Items]
Assets held for sale (See Note 1)	(460)
Dispositions	(835)
Acquisitions (See Note 3)	162
Amortization	(14,783)
Indefinite-Lived
Intangible Assets And Goodwill [Line Items]
Assets held for sale (See Note 1)	(35,423)
Dispositions	(78,582)
Acquisitions (See Note 3)	$ 26,129

Dispositions intangible assets net.

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- Definition

Intangible Assets Acquired

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Intangible Assets And Goodwill [Line Items]

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- Definition

Intangible Assets Transfer To Assets Held For Sale

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase (decrease) in carrying value of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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