North America | International | Total | ||||||||||
Balance as of December 31, 2014 | $ | 45,694 | $ | — | $ | 45,694 | ||||||
Acquired during the period (1) | 1,727 | — | 1,727 | |||||||||
Balance as of December 31, 2015 | 47,421 | — | 47,421 | |||||||||
Acquired during the period (1) | 8,451 | 103,472 | 111,923 | |||||||||
Foreign currency translation impact | — | (7,391 | ) | (7,391 | ) | |||||||
Balance as of December 31, 2016 | $ | 55,872 | $ | 96,081 | $ | 151,953 |