Receivables and Other Current Assets

3 Months Ended

Mar. 31, 2018

Prepaid Expense and Other Assets, Current [Abstract]

Receivables and Other Current Assets

Receivables and Other Current Assets

The Company's receivables and other current assets comprise the following balances:

(in thousands)	March 31, 2018		December 31, 2017
Accounts receivable, less allowance for doubtful accounts of $6,800	$	256,560	$	124,659
Receivables related to unrecognized revenue	$	134,613	$	215,155
Income taxes receivable, including overpayments and refunds	13,921		21,663
Prepaid expenses and other current assets	32,467		27,002
Total other receivables and current assets	$	181,001	$	263,820

Receivables for unrecognized revenue represent the current portion of billings made for software maintenance that have not yet been recognized as revenue.

The opening balances of accounts receivable and receivables related to unrecognized revenue, upon the adoption of ASC 606 at January 1, 2018, were $278.8 million and $136.4 million, respectively.