v3.20.2
Segment and Geographic Information - Revenue and Total Assets by Segment (Details) - USD ($)
 3 Months Ended 6 Months Ended
Apr. 23, 2020
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Segment Information                
Revenue   $ 182,687,000   $ 135,461,000   $ 358,166,000 $ 257,695,000  
Total segment profitability   $ (2,087,000)   $ (14,975,000)   $ (6,391,000) $ (18,181,000)  
Total segment profitability margin   (1.10%)   (11.10%)   (1.80%) (7.00%)  
Net loss   $ (66,167,000) $ (60,106,000) $ (27,972,000) $ (21,554,000) $ (126,273,000) $ (49,526,000)  
Adjustments                
Net interest expense (income)   6,364,000   610,000   11,344,000 (1,684,000)  
Foreign currency (gain) loss   (570,000)   13,000   1,701,000 383,000  
Income tax benefit   (363,000)   (18,691,000)   (1,418,000) (19,632,000)  
Depreciation and amortization expense   23,985,000   14,653,000   47,470,000 24,351,000  
Deferred revenue fair value adjustment   0   3,352,000   0 3,352,000  
Transaction and integration costs   359,000   3,093,000   1,083,000 5,024,000  
Restructuring-related costs   196,000   0   484,000 0  
Stockholder activism costs   1,347,000   0   5,586,000 0  
Stock-based compensation expense   21,091,000   9,967,000   41,961,000 19,551,000  
Loss on debt extinguishment $ 11,700,000 11,671,000   0   11,671,000 0  
Total adjustments   64,080,000   12,997,000   119,882,000 31,345,000  
Total assets   1,232,560,000       1,232,560,000   $ 1,186,830,000
Trade accounts receivable                
Provision for credit losses   (2,540,000)       (2,540,000)   (1,330,000)
Total trade accounts receivable   71,580,000       71,580,000   33,655,000
Contract liabilities   77,071,000       77,071,000   48,833,000
Graduate Program Segment                
Segment Information                
Revenue   115,685,000   101,403,000   234,142,000 205,577,000  
Total segment profitability   $ 4,703,000   $ (8,049,000)   $ 11,163,000 $ (7,339,000)  
Total segment profitability margin   4.10%   (7.90%)   4.80% (3.60%)  
Adjustments                
Total assets   $ 560,137,000       $ 560,137,000   507,187,000
Trade accounts receivable                
Accounts receivable, net   17,185,000       17,185,000   3,454,000
Graduate Program Segment unbilled revenue   27,777,000       27,777,000   12,123,000
Contract liabilities   15,112,000       15,112,000   2,210,000
Contract with customer, liability, revenue recognized           2,200,000 $ 2,400,000  
Alternative Credential Segment                
Segment Information                
Revenue   67,002,000   $ 34,058,000   124,024,000 52,118,000  
Total segment profitability   $ (6,790,000)   $ (6,926,000)   $ (17,554,000) $ (10,842,000)  
Total segment profitability margin   (10.10%)   (20.30%)   (14.20%) (20.80%)  
Adjustments                
Total assets   $ 672,423,000       $ 672,423,000   679,643,000
Trade accounts receivable                
Accounts receivable, net   29,158,000       29,158,000   19,408,000
Contract liabilities   61,959,000       61,959,000   $ 46,623,000
Contract with customer, liability, revenue recognized   $ 12,200,000   $ 0   $ 46,600,000 $ 5,400,000