Prepaid Expenses and Other Current Assets

12 Months Ended

Dec. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Current Assets

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following as of December 31, 2018 and 2017 (in thousands):

	December 31, 2018		December 31, 2017
Prepaid income taxes	$	47,196	$	30,314
Prepaid sales and other taxes	10,751		22,973
Prepaid equipment and software maintenance	21,876		26,354
Deferred commissions	41,955		35,044
Other prepaid expenses	22,871		28,866
Other current assets	18,711		29,302
Total	$	163,360	$	172,853

Incremental Costs to Obtain a Contract with a Customer

The following table summarizes the deferred costs associated with obtaining customer contracts, specifically commission and incentive payments, as of December 31, 2018 and 2017 (in thousands):

	December 31, 2018		December 31, 2017
Deferred costs included in prepaid and other current assets	$	41,955	$	35,044
Deferred costs included in other assets	26,338		23,536
Total deferred costs	$	68,293	$	58,580

During the years ended December 31, 2018, 2017 and 2016, the Company recognized $45.0 million, $37.6 million and $35.0 million, respectively, of amortization expense related to deferred commissions. Amortization expense related to deferred commissions is primarily included in sales and marketing expense in the consolidated statements of income.