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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2020
Equity [Abstract] |
Schedule of Restricted Stock Unit Activity | RSU activity for the year ended December 31, 2020 is presented below (in thousands, except per share data):
|  |  |  |  |  | Weighted- |
|  |  |  |  |  | Average |
|  | Number of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Unvested at December 31, 2019 |  |  | 656 |  |  | $ | 42.94 |
Granted |  |  | 360 |  |  |  | 35.15 |
Vested |  |  | (275 | ) |  |  | 41.92 |
Forfeited |  |  | (99 | ) |  |  | 43.02 |
Unvested at December 31, 2020 |  |  | 642 |  |  | $ | 38.99 |
Schedule of Stock Option Activity | Stock option activity for the year ended December 31, 2020 is presented below (in thousands, except per share data and contractual term):
|  |  |  |  |  | Weighted - |  |  | Weighted - |  |  |  |  |
|  |  |  |  |  | Average |  |  | Average |  |  |  |  |
|  |  |  |  |  | Exercise |  |  | Remaining |  |  | Aggregate |
|  | Number |  |  | Price Per |  |  | Contractual |  |  | Intrinsic |
|  | of Shares |  |  | Share |  |  | Term (in years) |  |  | Value |
Outstanding at December 31, 2019 |  |  | 436 |  |  | $ | 35.62 |  |  |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (90 | ) |  |  | 34.87 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (54 | ) |  |  | 37.70 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2020 |  |  | 292 |  |  | $ | 35.46 |  |  |  | 3.35 |  |  | $ | 1,880 |
Vested and Exercisable at December 31, 2020 |  |  | 292 |  |  | $ | 35.46 |  |  |  | 3.35 |  |  | $ | 1,880 |
Summary of Shares Purchased by Employees Under the Stock Purchase Plan | Shares purchased by employees under the Stock Purchase Plan are as follows (in thousands, except per share data):
| Shares |  |  | Purchase |
Purchase Period Ended | Purchased |  |  | Price |
February 29, 2020 |  | 47 |  |  | $ | 29.27 |
August 31, 2020 |  | 50 |  |  | $ | 30.14 |
February 28, 2019 |  | 25 |  |  | $ | 41.82 |
August 31, 2019 |  | 35 |  |  | $ | 29.64 |
Schedule of Components of Accumulated Other Comprehensive Income (Loss) | The components of accumulated other comprehensive income (loss) are as follows (in thousands):
|  | Marketable Investments |  |  | Interest Rate Swap |  |  | Translation Adjustment |  |  | Total AOCI/L |
Balance at December 31, 2017 |  | $ | (115 | ) |  | $ | — |  |  | $ | (1,897 | ) |  | $ | (2,012 | )
Foreign currency translation (1) |  |  | — |  |  |  | — |  |  |  | (3,257 | ) |  |  | (3,257 | )
Reclassification of stranded tax effects from tax reform |  |  | (26 | ) |  |  | — |  |  |  | — |  |  |  | (26 | )
Unrealized gain before reclassification, net of tax of $(4) |  |  | 12 |  |  |  | — |  |  |  | — |  |  |  | 12 |
Reclassification of AOCI/L to income, net of tax of $(75) (2) |  |  | 129 |  |  |  | — |  |  |  | — |  |  |  | 129 |
Balance at December 31, 2018 |  |  | — |  |  |  | — |  |  |  | (5,154 | ) |  |  | (5,154 | )
Foreign currency translation (1) |  |  | — |  |  |  | — |  |  |  | 401 |  |  |  | 401 |
Unrealized loss, net of tax of $40 |  |  | — |  |  |  | (104 | ) |  |  | — |  |  |  | (104 | )
Balance at December 31, 2019 |  |  | — |  |  |  | (104 | ) |  |  | (4,753 | ) |  |  | (4,857 | )
Foreign currency translation (1) |  |  | — |  |  |  | — |  |  |  | 4,884 |  |  |  | 4,884 |
Unrealized loss before reclassification, net of tax of $283 |  |  | — |  |  |  | (1,333 | ) |  |  | — |  |  |  | (1,333 | )
Reclassification of AOCI/L to income, net of tax of $(242) (3) |  |  | — |  |  |  | 616 |  |  |  | — |  |  |  | 616 |
Balance at December 31, 2020 |  | $ | — |  |  | $ | (821 | ) |  | $ | 131 |  |  | $ | (690 | )
(1) | The Company does not record tax provisions or benefits for the net changes in foreign currency translation adjustments as it intends to permanently reinvest undistributed earnings of its foreign subsidiaries.
(2) | Reclassification is related to r ealized losses on sales of the Company’s available-for-sale securities and were recorded in gains on investments, net in the Consolidated Statements of Operations.
(3) | Reclassification is related to the Company’s interest rate swap (cash flow hedge) and was recorded in interest expense in the Consolidated Statements of Operations. Refer to Note 6 – Derivatives and Hedging.

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: 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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