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Valuation and Qualifying Accounts (Tables) | 12 Months Ended
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Dec. 31, 2018
Valuation and Qualifying Accounts [Abstract] |
Schedule of Valuation and Qualifying Accounts |
|  | Balance at |  |  |  |  |  | Balance at
|  | Beginning of |  | Charged to |  | Deductions/ |  | End of
|  | Period |  | Expense |  | Transfers(1)(2) |  | Period
Allowance for doubtful accounts receivable |  |  |  |  |  |  |  |  |  |
Year ended December 31, 2018 |  | $ | 5,907 |  | 8,669 |  | (14,576) |  | $ | —
Year ended December 31, 2017 |  | $ | 5,918 |  | 18,478 |  | (18,489) |  | $ | 5,907
Year ended December 31, 2016 |  | $ | 5,137 |  | 18,639 |  | (17,858) |  | $ | 5,918
| (1) |  | Deductions represent accounts written off, net of recoveries.
| (2) |  | $6,093 included in the deductions column for the year ended December 31, 2018, represents the allowance that was transferred to GCU with other educational assets and liabilities on July 1, 2018. See Note 2.

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