Overview and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Cash and Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported in the Condensed Consolidated Balance Sheets that sum to the amounts reported in the Condensed Consolidated Statements of Cash Flows (in thousands):

	June 30, 2021		December 31, 2020		June 30, 2020		December 31, 2019
Cash and cash equivalents	$	103,209	$	103,077	$	129,050	$	127,246
Restricted cash included in "Other current assets"		290		355		318		568
Restricted cash included in "Deferred charges and    other assets"		966		964		1,315		1,371
	$	104,465	$	104,396	$	130,683	$	129,185

Schedule of Customer-Acquisition Advertising Costs

Total advertising costs included in “Direct salaries and related costs” in the accompanying Condensed Consolidated Statements of Operations were as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Customer-acquisition advertising costs		21,297		9,826	$	40,862	$	20,008