XML 116 R99.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Defined Contribution Bonus and Profit Sharing Plans Schedule of Bonus and Profit Sharing Plans Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Bonus and Profit Sharing Plans and Awards Expense | $ 40,005 | $ 43,377 | $ 14,192

X
- Definition Expense recognized in the period related to bonus and profit sharing plans and other awards for employee achievement. + References No definition available. + Details
Name: | itri_BonusAndProfitSharingPlansAndAwardsExpense
Namespace Prefix: | itri_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration