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Common Stock and Stock-Based Awards Plans (Tables) | 9 Months Ended
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Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule Of Unrecognized Compensation Cost And Remaining Weighted-Average Amortization Stock-Based Awards | As of September 30, 2020, the unrecognized compensation cost and remaining weighted-average amortization period related to stock-based awards were as follows:
|  |  |  |  |  | Performance-
|  |  |  | Time-based |  | based
|  |  |  | Restricted |  | Restricted
|  |  |  | Stock |  | Stock
(in thousands, except remaining period data) |  |  |  | Units |  | Units(1)
Unrecognized compensation cost |  |  |  | $ 22,573 |  | $ 5,570
Remaining weighted-average |  |  |  |  |  |  |  |
amortization period |  |  |  | 2.7 years |  | 1.7 years
(1) Based on the probable achievement of the performance goals identified in each award.
Weighted-Average Assumptions Used To Value The Options Granted | The following table summarizes activities relating to the Company’s stock options:
Summary Of Stock Options |
|  |  |  |  |  | Weighted- |  |
|  |  |  | Weighted- |  | Average |  | Aggregate
|  | Number of |  | Average |  | Remaining |  | Intrinsic
|  | Options |  | Exercise |  | Contractual |  | Value
|  | (in thousands) |  | Price |  | Term (Years) |  | (in thousands)
Outstanding as of December 31, 2019 |  | 270 |  | $20.02 |  |  |  |
Exercised |  | (20) |  | 22.60 |  |  |  |
Outstanding and exercisable as of September 30, 2020 |  | 250 |  | $19.81 |  | 2.66 |  | $ 425
Restricted Stock Units (RSUs) [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary Of Stock-Based Awards | The following table summarizes the activities related to the Company’s time-based restricted stock units:
|  |  |  |  | Weighted-
|  | Number of |  |  | Average
|  | Units |  |  | Grant Date
|  | (in thousands) |  |  | Fair Value
Non-vested awards outstanding as of December 31, 2019 |  | 893 |  |  | $28.06
Granted |  | 525 |  |  | 26.61
Vested |  | (301) |  |  | 27.61
Forfeited |  | (45) |  |  | 28.60
Non-vested awards outstanding as of September 30, 2020 |  | 1,072 |  |  | $27.45
Performance-Based Restricted Stock Units [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary Of Stock-Based Awards | The following table summarizes the activities related to the Company’s performance-based restricted stock units:
|  |  |  |  |  | Weighted-
|  |  | Number of |  |  | Average
|  |  | Units |  |  | Grant Date
|  |  | (in thousands) |  |  | Fair Value
Non-vested awards outstanding as of December 31, 2019 |  |  | 384 |  |  | $28.89
Granted (1) |  |  | 165 |  |  | 28.02
Forfeited |  |  | (181) |  |  | 30.04
Non-vested awards outstanding as of September 30, 2020 |  |  | 368 |  |  | $27.93
(1) Represents target number of units that can vest based on the achievement of the performance goals.

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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