Subsequent Events - Additional Information (Detail)	12 Months Ended																		12 Months Ended				1 Months Ended								1 Months Ended		1 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2012 PLN	Dec. 31, 2012 RUB	Mar. 31, 2013 USD ($)	Mar. 31, 2013 PLN	Dec. 24, 2012 USD ($)	Dec. 24, 2012 PLN	Sep. 28, 2012 USD ($)	Sep. 28, 2012 PLN	Aug. 02, 2012 USD ($)	Aug. 02, 2012 HUF	Mar. 31, 2012 PLN	Mar. 01, 2012 USD ($)	Jan. 02, 2012 USD ($)	Jan. 02, 2012 PLN	Dec. 31, 2011 USD ($)	Dec. 31, 2012 Alfa Bank USD ($)	Dec. 31, 2012 Alfa Bank EUR (€)	Dec. 31, 2012 Loan Agreement Sberbank USD ($)	Dec. 31, 2012 Loan Agreement Sberbank RUB	Dec. 31, 2012 Loan Agreement MKB Bank USD ($)	Dec. 31, 2012 Loan Agreement MKB Bank RUB	Jul. 31, 2008 Loan Agreement Alfa Bank USD ($)	Jul. 31, 2008 Loan Agreement Alfa Bank EUR (€)	Dec. 31, 2012 Loan Agreement Alfa Bank USD ($)	Dec. 31, 2012 Loan Agreement Alfa Bank EUR (€)	Dec. 31, 2012 Notes Due Two Thousand Thirteen Roust Trading Limited USD ($)	Mar. 15, 2013 Restructuring Transactions Notes Due Two Thousand Thirteen USD ($)	Mar. 18, 2013 Restructuring Transactions Notes Due Two Thousand Thirteen Roust Trading Limited USD ($)	Jun. 05, 2013 Subsequent Event USD ($)	Jun. 05, 2013 Subsequent Event ING	Jun. 05, 2013 Subsequent Event Roust Trading Limited	Jun. 05, 2013 Subsequent Event Senior Secured Notes Due 2018 USD ($)	Jun. 05, 2013 Subsequent Event Convertible Junior Secured Notes Due 2018 USD ($)	Jun. 05, 2013 Subsequent Event Loan Agreement Sberbank USD ($)	Jun. 05, 2013 Subsequent Event Loan Agreement Sberbank RUB	Feb. 27, 2013 Subsequent Event Loan Agreement Russian Standard Bank RUB	Jun. 07, 2013 Subsequent Event Loan Agreement MKB Bank USD ($)	Jun. 07, 2013 Subsequent Event Loan Agreement MKB Bank RUB	May 28, 2013 Subsequent Event Loan Agreement Alfa Bank USD ($)	May 28, 2013 Subsequent Event Loan Agreement Alfa Bank RUB
Subsequent Event [Line Items]
Debt defaulted, principal amount																												$ 257,900,000	$ 20,000,000
Debt instrument issuance amount	70,000,000																										50,000,000						465,000,000	200,000,000
Debt instrument maturity year																																	2018	2018
Debt issuance date																																	Jun. 19, 2013	Jun. 19, 2013
Common stock issued	76,047,506	76,047,506	76,047,506													72,740,302														10,000
Percentage of voting securities control																																100.00%
Common Stock, shares authorized	120,000,000	120,000,000	120,000,000													120,000,000														90,000
Common Stock, par value	$ 0.01															$ 0.01														$ 0.01
Preferred Stock, shares authorized	1,000,000	1,000,000	1,000,000													1,000,000														10,000
Preferred Stock, par value	$ 0.01															$ 0.01														$ 0.01
Factoring agreements, limit	64,500,000	200,000,000		26,500,000	82,000,000	41,900,000	130,000,000	54,800,000	170,000,000			220,000,000	71,000,000	80,700,000	250,000,000
Company signed factoring agreement																															2013-02
Initiation date	December 24, 2012	December 24, 2012	December 24, 2012																November 23, 2012	November 23, 2012	July 19, 2012	July 19, 2012	July 22, 2008	July 22, 2008											November 23, 2012	November 23, 2012	February 27, 2013	June 7, 2013	June 7, 2013
Outstanding liability																					29,600,000	900,000,000			17,300,000	13,100,000									15,000,000	520,000,000				30,000,000	1,000,000,000
Maximum borrowing capacity	16,400,000		500,000,000							2,300,000	500,000,000						36,900,000	28,000,000	8,200,000	248,000,000			26,400,000	20,000,000													465,000,000	30,000,000	1,000,000,000	60,000,000	2,000,000,000
Financial statements guarantees	$ 765,000,000		25,400,000,000