Earnings per Share (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Aug. 30, 2018
Earnings per Share [Line Items]
Total anti-dilutive shares excluded from the calculation (in shares)	63,000	317,000
Number of shares repurchased	0	400,917
Number of shares repurchased, cost		$ 12,355
Stock repurchase program, remaining amount	$ 59,500
Maximum [Member]
Earnings per Share [Line Items]
Stock repurchase program, authorized amount			$ 100,000

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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-Publisher FASB
-Name Accounting Standards Codification
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