NET (LOSS) INCOME PER SHARE (Tables)

12 Months Ended

Dec. 31, 2013

NET (LOSS) INCOME PER SHARE [Abstract]

Components of denominator for calculation of basic net (loss) income per share and diluted net (loss) income per share

The components of the denominator for the calculation of basic net (loss) income per share and diluted net (loss) income per share are as follows:

	Years Ended December 31,
	2013		2012		2011

Common shares outstanding, basic:
Weighted-average common shares outstanding, basic		43,249,070		41,727,075		35,179,244

Common shares outstanding, diluted:
Weighted-average common shares outstanding, basic		43,249,070		41,727,075		35,179,244

Dilutive effect of convertible notes		—		—		—

Dilutive effect of restricted stock awards		—		—		78,961

Weighted-average common shares outstanding, diluted		43,249,070		41,727,075		35,258,205

Reconciliation of net (loss) income attributable to GS&T and net (loss) income attributable to GS&T for diluted earnings per share

The following table sets forth a reconciliation of the net (loss) income attributable to GS&T and the net (loss) income attributable to GS&T for diluted net (loss) income per share under the “if-converted” method:

	Years Ended December 31,
	2013			2012			2011

Net (loss) income attributable to GS&T	$	(147,741	)	$	(144,928	)	$	25,386

Interest expense related to convertible notes, if dilutive		—			—			—

Net (loss) income attributable to GS&T for the computation of diluted net (loss) income per share	$	(147,741	)	$	(144,928	)	$	25,386