Shareholders' Equity (Stock-Based Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Stock-based compensation expense	$ 6,929	$ 5,038
Less: Deferred tax benefit	(1,381)	(946)
Stock-based compensation expense, net of tax	$ 5,548	$ 4,092

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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