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Stockholders' Equity - Schedule of Reconciliation of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | $ 2,228,873 | $ 2,378,893 | $ 2,833,620 | $ 3,278,311 | $ 3,403,369 | $ 3,505,423 | $ 2,833,620 | $ 3,505,423
Beginning Balance (in shares) |  |  | 269,372,257 |  |  |  | 269,372,257 |
Net loss | (112,111) | (150,332) | $ (434,722) | (261,719) | (49,447) | (28,614) | $ (697,165) | (339,780)
Foreign currency translation adjustment | 218 | 695 | (1,386) | 854 | 848 | 944 | (473) | 2,646
Exercise of stock options |  |  |  |  | 9,219 |  |  | 9,219
Stock-based compensation | 6,592 | 4,335 | 9,160 | 9,670 | 11,050 | 9,338 | 20,087 | 30,058
Payment of cash dividends | (3,746) | (3,735) | (7,629) | (7,847) | (8,344) | (8,499) | (15,110) | (24,690)
Dividend equivalents | (69) | (73) | (125) | (160) | (126) | (110) | (267) | (396)
Purchase of treasury stock | (194) | (910) | (20,025) | (76,123) | (88,258) | (75,113) | (21,129) | (239,494)
Ending Balance | $ 2,119,563 | 2,228,873 | 2,378,893 | 2,942,986 | 3,278,311 | 3,403,369 | $ 2,119,563 | 2,942,986
Ending Balance (in shares) | 270,861,290 |  |  |  |  |  | 270,861,290 |
Common Stock |  |  |  |  |  |  |  |
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | $ 2,706 | $ 2,695 | $ 2,694 | $ 2,688 | $ 2,673 | $ 2,673 | $ 2,694 | $ 2,673
Beginning Balance (in shares) | 270,569,000 | 269,523,000 | 269,372,000 | 268,791,000 | 267,353,000 | 267,316,000 | 269,372,000 | 267,316,000
Exercise of stock options |  |  |  |  | $ 7 |  |  | $ 7
Exercise of stock options (in shares) |  |  |  |  | 700,000 |  |  | 700,000
Vesting of restricted stock units | $ 2 | $ 11 | $ 1 | $ 4 | $ 8 |  | $ 14 | $ 12
Vesting of restricted stock units (in shares) | 292,000 | 1,046,000 | 151,000 | 433,000 | 739,000 | 38,000 | 1,489,000 | 1,210,000
Forfeitures of restricted stock (in shares) |  |  |  |  | (1,000) | (1,000) |  | (2,000)
Ending Balance | $ 2,708 | $ 2,706 | $ 2,695 | $ 2,692 | $ 2,688 | $ 2,673 | $ 2,708 | $ 2,692
Ending Balance (in shares) | 270,861,000 | 270,569,000 | 269,523,000 | 269,224,000 | 268,791,000 | 267,353,000 | 270,861,000 | 269,224,000
Additional Paid-in Capital |  |  |  |  |  |  |  |
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | $ 2,889,163 | $ 2,884,839 | $ 2,875,680 | $ 2,856,746 | $ 2,836,492 | $ 2,827,154 | $ 2,875,680 | $ 2,827,154
Exercise of stock options |  |  |  |  | 9,212 |  |  | 9,212
Vesting of restricted stock units | (2) | (11) | (1) | (4) | (8) |  | (14) | (12)
Stock-based compensation | 6,592 | 4,335 | 9,160 | 9,670 | 11,050 | 9,338 | 20,087 | 30,058
Ending Balance | 2,895,753 | 2,889,163 | 2,884,839 | 2,866,412 | 2,856,746 | 2,836,492 | 2,895,753 | 2,866,412
Retained Earnings |  |  |  |  |  |  |  |
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | 698,286 | 852,426 | 1,294,902 | 1,658,417 | 1,716,334 | 1,753,557 | 1,294,902 | 1,753,557
Net loss | (112,111) | (150,332) | (434,722) | (261,719) | (49,447) | (28,614) | (697,165) | (339,780)
Payment of cash dividends | (3,746) | (3,735) | (7,629) | (7,847) | (8,344) | (8,499) | (15,110) | (24,690)
Dividend equivalents | (69) | (73) | (125) | (160) | (126) | (110) | (267) | (396)
Ending Balance | 582,360 | 698,286 | 852,426 | 1,388,691 | 1,658,417 | 1,716,334 | 582,360 | 1,388,691
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |  |  |  |
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | 4,787 | 4,092 | 5,478 | 4,279 | 3,431 | 2,487 | 5,478 | 2,487
Foreign currency translation adjustment | 218 | 695 | (1,386) | 854 | 848 | 944 | (473) | 2,646
Ending Balance | 5,005 | 4,787 | 4,092 | 5,133 | 4,279 | 3,431 | 5,005 | 5,133
Treasury Stock |  |  |  |  |  |  |  |
Schedule of Treasury Stock [Line Items] |  |  |  |  |  |  |  |
Beginning Balance | (1,366,069) | (1,365,159) | (1,345,134) | (1,243,819) | (1,155,561) | (1,080,448) | (1,345,134) | (1,080,448)
Purchase of treasury stock | (194) | (910) | (20,025) | (76,123) | (88,258) | (75,113) | (21,129) | (239,494)
Ending Balance | $ (1,366,263) | $ (1,366,069) | $ (1,365,159) | $ (1,319,942) | $ (1,243,819) | $ (1,155,561) | $ (1,366,263) | $ (1,319,942)

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