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STOCKHOLDERS' EQUITY
 6 Months Ended
Jun. 30, 2026
Equity [Abstract]  
STOCKHOLDERS' EQUITY STOCKHOLDERS’ EQUITY:
Cash Dividends
In October 2024, the Company’s board of directors declared dividends of $0.21 per share to be paid to stockholders of record at the end of each quarter in 2025. In October 2025, the Company’s board of directors raised the quarterly cash dividend and declared cash dividends of $0.215 per share to be paid at the end of each quarter in 2026.
For the three and six months ended June 30, 2026 and 2025, cash dividends declared and paid were as follows:
Three Months Ended
June 30,		Six Months Ended
June 30,
(In thousands, except per share amounts)2026202520262025
Dividends declared and paid$11,887 $11,809 $23,837 $23,768 
Dividends declared per common share$0.215 $0.21 $0.430 $0.42 
Common Stock Repurchases
From time to time, the Company’s board of directors has authorized the use of funds to repurchase shares of the Company’s common stock. As of June 30, 2026, the Company did not have any amount authorized to repurchase shares of its common stock.
Employee Stock Incentive Plans
The following table summarizes the stock-based compensation expense recognized in accordance with ASC 718 for the three and six months ended June 30, 2026 and 2025:
Three Months Ended
June 30,		Six Months Ended
June 30,
(In thousands)2026202520262025
Cost of revenue$707 $592 $1,176 $1,249 
Research and development3,036 3,190 4,940 5,440 
Selling, general and administrative6,993 6,295 10,519 12,071 
Other operating expenses (see note below)522 — (897)— 
Restructuring and related charges— — 1,827 — 
Total stock-based compensation expense$11,258 $10,077 $17,565 $18,760 
Other Operating Expenses
In connection with his retirement in July 2025, the Company’s former chief executive officer, Balu Balakrishnan, entered into a transition agreement and a consulting agreement with the Company. Pursuant to these agreements, Mr. Balakrishnan’s outstanding equity awards continue to vest subject to his continuous service and the applicable award agreements. The majority of these awards are subject to performance criteria established at the time of grant and will only be earned to the extent that the Company’s performance satisfies such criteria at the conclusion of the applicable performance periods. As the services to be performed by Mr. Balakrishnan under the transition agreement and the consulting agreement do not qualify as “substantive services” under ASC 718, Compensation–Stock Compensation, the continued vesting of the outstanding equity awards represents a modification of the original awards. Consequently, in the year ended December 31, 2025, the Company recognized stock-based compensation in the amount of $8.4 million in other operating expenses. In the three months ended June 30, 2026, the Company recorded an expense of $0.5 million in other operating expenses on its condensed consolidated statements of income, adjusting a portion of the previously recognized stock-based compensation expenses. The corresponding amount for the six-month period was a credit of $0.9 million. The adjustment reflects our revised estimate of the portion of the awards that will ultimately vest based on the Company's forecasted performance. Subsequent changes in our estimates could result in further adjustments in future periods until the vesting of these equity awards.