Significant Events and Transactions of the Period (Tables)

9 Months Ended

Sep. 30, 2020

Restructuring and Related Activities [Abstract]

Balance of Treasury Shares

As of September 30, 2020, we had 6.0 million treasury shares remaining which may be used to satisfy the Company's obligations under its employee equity plans upon RSU vesting in lieu of issuing new shares, and for any potential M&A activity.

	Number of Treasury Shares	Amount (in thousands of dollars)
Balance at January 1, 2020	3,903,673	$	74,900
Treasury Shares Repurchased for RSU Vesting	3,358,068	43,655
Treasury Shares Issued for RSU Vesting	(1,272,483)	(26,105)
Balance at September 30, 2020	5,989,258	$	92,450

Schedule of Restructuring Reserve by Type of Cost

The following table summarizes restructuring activities as of September 30, 2020 included in other current liabilities on the balance sheet:

	Nine Months Ended
	September 30, 2020
	(in thousands)
Restructuring liability - January 1, 2020	$	5,581
Restructuring costs	560
Restructuring costs - non cash items	—
Amount paid	(5,108)
Restructuring liability - September 30, 2020	1,033

The following table summarizes restructuring activities as of September 30, 2020 included in other current liabilities on the balance sheet:

	Nine Months Ended
	September 30, 2020
	(in thousands)
Restructuring liability - January 1, 2020	$	510
Restructuring costs	3,932
Amount paid	(2,159)
Restructuring liability - September 30, 2020	2,283