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Employee Benefits And Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |
Classification Of Stock-Based Compensation | The following table presents the classification of stock-based compensation:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
| (In thousands)
Stock-based compensation: |  |  |  |  |
Cost of revenues | $ | 7,009 |  |  | $ | 6,400 |  |  | $ | 6,156 |
Sales and marketing | 6,763 |  |  | 8,023 |  |  | 6,252 |
Research and development | 6,488 |  |  | 7,018 |  |  | 7,199 |
General and administrative | 25,815 |  |  | 22,536 |  |  | 17,042 |
Total stock-based compensation | $ | 46,075 |  |  | $ | 43,977 |  |  | $ | 36,649 |
Nature Of Total Stock-Based Compensation | The following table presents the nature of the Company’s total stock-based compensation:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
| (In thousands)
RSUs | $ | 36,664 |  |  | $ | 32,304 |  |  | $ | 29,123 |
Performance-based RSUs | 8,078 |  |  | 10,232 |  |  | 5,033 |
ESPP | 4,051 |  |  | 4,192 |  |  | 5,486 |
Capitalization (Included in Property and equipment, net) | (2,718 | ) |  | (2,751 | ) |  | (2,993 | )
Total stock-based compensation expense | $ | 46,075 |  |  | $ | 43,977 |  |  | $ | 36,649 |
Summary Of Unvested RSUs Activity | The following table summarizes unvested RSUs activity:
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Shares |  | Weighted-Average Grant-Date Fair Value |  | Shares |  | Weighted-Average Grant-Date Fair Value |  | Shares |  | Weighted-Average Grant-Date Fair Value
| (Shares in thousands)
Unvested at beginning of period | 2,179 |  |  | $ | 46.36 |  |  | 2,442 |  |  | $ | 38.00 |  |  | 2,478 |  |  | $ | 32.07 |
Granted | 1,075 |  |  | 61.74 |  |  | 909 |  |  | 55.05 |  |  | 1,132 |  |  | 45.08 |
Vested and settled | (932 | ) |  | 43.92 |  |  | (878 | ) |  | 35.99 |  |  | (900 | ) |  | 30.73 |
Forfeited | (212 | ) |  | 51.47 |  |  | (294 | ) |  | 44.00 |  |  | (268 | ) |  | 36.09 |
| 2,110 |  |  | $ | 54.77 |  |  | 2,179 |  |  | $ | 46.36 |  |  | 2,442 |  |  | $ | 38.00 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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