Significant Events and Transactions of the Period (Tables)

3 Months Ended

Mar. 31, 2020

Restructuring and Related Activities [Abstract]

Balance of Treasury Shares

As of March 31, 2020, we had 4.5 million treasury shares remaining which may be used to satisfy the Company's obligations under its employee equity plans upon RSU vestings in lieu of issuing new shares, and for M&A activity. We completed the 2019 share repurchase program in February 2020.

	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	1,258,068	18,239
Treasury Shares Issued for RSU Vesting	(628,091)	(13,305)
Balance at March 31, 2020	4,533,650	$	79,834

Schedule of Restructuring Reserve by Type of Cost

The following table summarizes restructuring activities as of March 31, 2020 included in other current liabilities on the balance sheet:

	Three Months Ended
	March 31, 2020
	(in thousands)
Restructuring liability - January 1, 2020	$	5,581
Restructuring costs	449
Amount paid	(3,788)
Restructuring liability - March 31, 2020	2,242

The following table summarizes restructuring activities as of March 31, 2020 included in other current liabilities on the balance sheet:

	Three Months Ended
	March 31, 2020
	(in thousands)
Restructuring liability - January 1, 2020	$	510
Restructuring costs	772
Amount paid	(686)
Restructuring liability - March 31, 2020	596

Summary of Restructuring Costs

	Three Months Ended
	March 31, 2020
	(in thousands)
Payroll related costs	$	(772)
Total restructuring costs	(772)