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Earnings (Loss) Per Share - Summary of Earnings (Loss) Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations | $ 171,631 | $ (67,180) | $ 83,154 | $ (166,767) | $ 23,634 | $ 120,198 | $ 325,541 | $ (136,633) | $ 20,838 | $ 332,740 | $ (324,199)
Net loss attributable to noncontrolling interests |  |  |  |  |  |  |  |  | 804 | 1,393 | 623
Income (loss) from continuing operations attributable to Laureate Education, Inc. |  |  |  |  |  |  |  |  | 21,642 | 334,133 | (323,576)
Numerator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Adjusted for: accretion related to noncontrolling interests and equity redeemable at fair value |  |  |  |  |  |  |  |  | (6,358) | 33 | 6,879
Distributed and undistributed earnings to participating securities |  |  |  |  |  |  |  |  | (1) | (98) | (11)
Subtotal: accretion of Series A convertible redeemable preferred stock and other redeemable noncontrolling interests and equity |  |  |  |  |  |  |  |  | (298,492) | (1,521) | (6,173)
Net (loss) income from continuing operations available to common stockholders for basic earnings per share |  |  |  |  |  |  |  |  | (276,850) | 332,612 | (329,749)
Net (loss) income from continuing operations available to common stockholders for diluted earnings per share |  |  |  |  |  |  |  |  | (276,850) | 332,612 | (329,749)
Income from discontinued operations, net of tax expense | $ 28,879 | $ (36,309) | $ 33,943 | $ 46,413 | $ 14,829 | $ (39,268) | $ 23,698 | $ 34,187 | 72,926 | 33,446 | 8,354
(Income) loss attributable to noncontrolling interests |  |  |  |  |  |  |  |  | (3,103) | 4,268 | (1,026)
Allocation of earnings from discontinued operations to participating securities |  |  |  |  |  |  |  |  | (5) | (16) | 0
Net income from discontinued operations for basic earnings per share |  |  |  |  |  |  |  |  | 69,818 | 37,698 | 7,328
Net income from discontinued operations for diluted earnings per share |  |  |  |  |  |  |  |  | $ 69,818 | $ 37,698 | $ 7,328
Denominator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding (in shares) |  |  |  |  |  |  |  |  | 172,409 | 133,295 | 132,950
Diluted weighted average shares outstanding (in shares) |  |  |  |  |  |  |  |  | 172,409 | 134,406 | 132,950
Basic earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations (in dollars per share) | $ 0.34 | $ (0.82) | $ 0.09 | $ (1.34) | $ 0.13 | $ 0.94 | $ 2.43 | $ (1.02) | $ (1.60) | $ 2.50 | $ (2.49)
Income from discontinued operations (in dollars per share) | 0.14 | (0.20) | 0.19 | 0.29 | 0.14 | (0.28) | 0.17 | 0.26 | 0.40 | 0.28 | 0.05
Basic (loss) earnings per share (in dollars per share) | 0.48 | (1.02) | 0.28 | (1.05) | 0.27 | 0.66 | 2.60 | (0.76) | (1.20) | 2.78 | (2.44)
Diluted earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |
(Loss) income from continuing operations (in dollars per share) | 0.34 | (0.82) | 0.09 | (1.34) | 0.13 | 0.94 | 2.42 | (1.02) | (1.60) | 2.48 | (2.49)
Income from discontinued operations (in dollars per share) | 0.14 | (0.20) | 0.19 | 0.29 | 0.14 | (0.28) | 0.17 | 0.26 | 0.40 | 0.28 | 0.05
Diluted (loss) earnings per share (in dollars per share) | $ 0.48 | $ (1.02) | $ 0.28 | $ (1.05) | $ 0.27 | $ 0.66 | $ 2.59 | $ (0.76) | $ (1.20) | $ 2.76 | $ (2.44)
Stock options |  |  |  |  |  |  |  |  |  |  |
Denominator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive stock (in shares) |  |  |  |  |  |  |  |  | 0 | 833 | 0
Restricted Stock Units (RSUs) |  |  |  |  |  |  |  |  |  |  |
Denominator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Effect of dilutive stock (in shares) |  |  |  |  |  |  |  |  | 0 | 278 | 0
Puttable Arrangements - Common and Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Numerator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Accretion of temporary equity |  |  |  |  |  |  |  |  | $ 317 | $ 263 | $ (13,041)
Series A Convertible Redeemable Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Numerator used in basic and diluted (loss) earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Accretion of temporary equity |  |  |  |  |  |  |  |  | $ (292,450) | $ (1,719) | $ 0

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