You can use Ctrl+Alt+Shift+V (presumably ⌘+Alt / Option+Shift+V for OS X) to do Paste Simple (also available from the right-click context menu). This will paste your most recent clipboard content without escaping it.
Many other programs that offer “simple pasting” will use Ctrl+Shift+V instead, but in IntelliJ that opens an IntelliJ clipboard memory dialog, where you can choose previously copied text to paste.
Note that these are all default, but customizable, keyboard shortcuts.