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

12 Months Ended

Dec. 31, 2014

CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS; BANK OVERDRAFT

Schedule of cash and cash equivalents

	December 31,
	2013		2014
Cash and cash equivalents:
Russian ruble bank accounts	$	16,616	$	30,672
US dollar bank accounts		12,754		5,861
Other		1,204		1,303
Total cash and cash equivalents	$	30,574	$	37,836

Schedule of short-term investments

	December 31,
	2013					2014
	Annual interest rate			Amount		Annual interest rate			Amount
Short-term investments:
Ruble-denominated deposits		6.3–9.0	%	$	178,937				$	—
US dollar-denominated deposits		0.27	%	$	1,400		0.55–3.9	%	$	103,800
Total short-term investments				$	180,337				$	103,800