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Segment Information - Total Assets, Capital Expenditures, Depreciation and Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Other Significant Reconciling Item [Line Items]
Assets	$ 3,665,331	$ 3,505,846
Capital expenditures	92,552	70,588	$ 56,379
Depreciation and amortization	228,737	232,032	187,174
Reportable segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Assets	3,561,795	3,027,993
Capital expenditures	92,552	70,562	56,379
Depreciation and amortization	225,075	229,545	183,597
Corporate, Non-Segment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Assets	103,536	477,853
Capital expenditures	0	26	0
Depreciation and amortization	3,662	2,487	3,577
Cloud Services | Reportable segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Assets	1,473,398	1,466,969
Capital expenditures	32,859	21,826	13,832
Depreciation and amortization	79,754	80,970	60,754
Digital Media | Reportable segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Assets	2,088,397	1,561,024
Capital expenditures	59,693	48,736	42,547
Depreciation and amortization	$ 145,321	$ 148,575	$ 122,843

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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