Three months ended
June 30,

Six months ended
June 30,

(in thousands)

2018

2017

2018

2017

Income tax based on income from continuing operations, at estimated tax rates of 30.1% and 32.8%, respectively

$11,239

$989

$15,779

$6,744

Provision for change in estimated tax rate

(359)

36

-

Income tax before discrete items

10,880

1,025

15,779

6,744

Discrete tax expense:

Exercise of US Stock Options

(3)

-

(126)

(55)

Impact of mandatory repatriation

(1,099)

-

(1,099)

-

Adjustments to prior period tax liabilities

(206)

189

(252)

189

Provision for/resolution of tax audits and contingencies, net

2,443

599

2,448

1,451

Changes in valuation allowance

(4,986)

-

(4,986)

-

Other

2

(34)

(124)

-

Total income tax expense

$7,031

$1,779

$11,640

$8,329