CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS; OTHER NON-CURRENT ASSETS (Tables)

9 Months Ended

Sep. 30, 2015

CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS; OTHER NON-CURRENT ASSETS

Schedule of cash and cash equivalents

	December 31, 2014		September 30, 2015
Cash and cash equivalents:
Russian ruble bank accounts	$	30,672	$	16,266
U.S. dollar bank accounts		5,861		67,122
Other		1,303		651
Total cash and cash equivalents	$	37,836	$	84,039

Schedule of short-term investments

	December 31, 2014			September 30, 2015
	Annual interest rate	Amount		Annual interest rate	Amount
Short-term investments:
Ruble-denominated deposits		$	—		$	—
U.S. dollar-denominated deposits	0.55% - 3.9%	$	103,800	2.1% - 2.49%	$	17,200
Total short-term investments		$	103,800		$	17,200