[["", "2016", "2015", "2014"], ["balance at january 1", "$ 28114", "$ 31947", "$ 32545"], ["additions based on tax positions related to the current year", "82912", "5042", "4187"], ["additions for tax positions of prior years", "2014", "2014", "3780"], ["foreign currency", "-307 ( 307 )", "-5371 ( 5371 )", "-3216 ( 3216 )"], ["reduction as a result of the lapse of statute of limitations and effective settlements", "-3168 ( 3168 )", "-3504 ( 3504 )", "-5349 ( 5349 )"], ["balance at december 31", "$ 107551",