CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 416,850	$ 271,382
Accounts receivable, net of allowance for doubtful accounts of $170 and $132, respectively	62,859	54,091
Restricted cash	1,108	1,909
Prepaid expenses and other current assets	24,032	19,202
Total current assets	504,849	346,584
Other assets:
Property and equipment, net	3,005	3,872
Long-term deposits	1,145	1,163
Goodwill	522,814	518,592
Intangible assets, net of accumulated amortization of $156,870 and $127,172, respectively	378,985	396,445
Other long-term assets	1,075
Deferred income taxes	2,916	2,744
Total assets	1,414,789	1,269,400
Current liabilities:
Accounts payable	11,260	6,394
Accrued expenses	25,266	30,729
Current portion of deferred revenue	27,987	30,662
Current portion of interest rate swap liability	1,813	2,605
Current portion of long-term debt	3,020	4,680
Current portion of capital lease obligations	288	275
Total current liabilities	69,634	75,345
Long-term liabilities:
Capital lease obligations, net of current portion	100	318
Deferred revenue, net of current portion	1,233	545
Deferred income taxes	79,633	75,894
Long-term portion of interest rate swap liability		1,066
Long-term debt, net of current portion and debt discount	292,183	294,100
Other long-term liabilities	686
Total liabilities	443,469	447,268
Commitments and contingencies
Stockholders' equity:
Preferred shares, $0.01 par value, 50,000,000 shares authorized, no shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively
Common shares, $0.01 par value, 600,000,000 shares authorized, 157,353,191 and 152,979,479 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively	1,574	1,529
Additional paid-in capital	1,038,581	884,528
Accumulated deficit	(65,905)	(62,338)
Accumulated other comprehensive loss	(2,930)	(1,587)
Total stockholders' equity	971,320	822,132
Total liabilities and stockholders' equity	$ 1,414,789	$ 1,269,400

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).