Amount pertaining to the Asset write-off of the restructuring activities.

No definition available.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 420
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
Restructuring Charges (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Charges
Balance at the beginning of the period			$ 6		$ 6
Restructuring charges recognized	$ 1	$ 3,436	7,165		10,601		$ 9,620
Acceleration of share-based compensation					29,762	$ 20,238	$ 25,620
Balance at the end of the period	1,942				1,942	6
Restructuring Plan 2018
Restructuring Charges
Restructuring charges recognized		3,436	7,165		10,601
Cash payments					(5,567)
Acceleration of share-based compensation					(2,702)
Asset write-off					(390)
Balance at the end of the period	1,942				1,942
Employee separation and related costs
Restructuring Charges
Restructuring charges recognized			7,200	$ 5,300
Employee separation and related costs \| Restructuring Plan 2016
Restructuring Charges
Balance at the beginning of the period			6		6
Asset write-off					(6)
Balance at the end of the period						$ 6
Employee separation and related costs \| Restructuring Plan 2018
Restructuring Charges
Restructuring charges recognized		1,135	$ 7,165		8,300
Cash payments					(5,106)
Acceleration of share-based compensation					(2,702)
Balance at the end of the period	492				492
Consolidation of leased facilities \| Restructuring Plan 2018
Restructuring Charges
Restructuring charges recognized		$ 2,301			2,301
Cash payments					(461)
Asset write-off					(390)
Balance at the end of the period	$ 1,450				$ 1,450