Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2012

Accrued Liabilities [Abstract]

Accrued Liabilities Current [Table Text Block]

	December 31,
		2012		2011
Foreign taxes payable	$	18,989	$	445
Accrued interest		25,932		3,186
Preferred dividends		1,617		1,459
Accrued compensation		1,882		4,671
Current portion of asset retirement obligations		36,255		2,078
Development asset accrual		-		6,160
Other		5,425		2,550
	$	90,100	$	20,549