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THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Share-based compensation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 112,118	$ 71,342	$ 68,864
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU portion of non vested restricted share units (in shares)	36,000	36,000
Share-based compensation expense	$ 2,051	$ 893	$ 0
Minimum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage of the target	0.00%
Maximum \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage of the target	175.00%