Quarterly report pursuant to Section 13 or 15(d)

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Statement of Comprehensive Income (Loss) (Details)

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Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Statement of Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Schedule of Condensed Statement of Comprehensive Income [Line Items]    
Net income $ (12,392) $ 572
Currency translation difference on related borrowings (804) 0
Currency translation difference on foreign currency net investments 699 0
Total other comprehensive loss, net of tax: (105) 0
Comprehensive income (loss) (12,497) 572
Comprehensive (income) loss attributable to noncontrolling interest (154) 20
Comprehensive income (loss) attributable to controlling interest (12,651) 592
Parent [Member]
    
Schedule of Condensed Statement of Comprehensive Income [Line Items]    
Net income (12,549) 592
Currency translation difference on related borrowings 0 0
Total other comprehensive loss, net of tax: 0 0
Comprehensive income (loss) (12,549) 592
Comprehensive (income) loss attributable to noncontrolling interest 0 0
Comprehensive income (loss) attributable to controlling interest (12,549) 592
Guarantor [Member]
    
Schedule of Condensed Statement of Comprehensive Income [Line Items]    
Net income 12,040 10,159
Currency translation difference on related borrowings 0 0
Total other comprehensive loss, net of tax: 0 0
Comprehensive income (loss) 12,040 10,159
Comprehensive (income) loss attributable to noncontrolling interest 0 0
Comprehensive income (loss) attributable to controlling interest 12,040 10,159
Non-Guarantor [Member]
    
Schedule of Condensed Statement of Comprehensive Income [Line Items]    
Net income (1,394) (10,000)
Currency translation difference on related borrowings (804) 0
Currency translation difference on foreign currency net investments 699 0
Total other comprehensive loss, net of tax: (105) 0
Comprehensive income (loss) (1,499) (10,000)
Comprehensive (income) loss attributable to noncontrolling interest (154) 20
Comprehensive income (loss) attributable to controlling interest (1,653) (9,980)
Eliminations [Member]
    
Schedule of Condensed Statement of Comprehensive Income [Line Items]    
Net income (10,489) (179)
Currency translation difference on related borrowings 0 0
Total other comprehensive loss, net of tax: 0 0
Comprehensive income (loss) (10,489) (179)
Comprehensive (income) loss attributable to noncontrolling interest 0 0
Comprehensive income (loss) attributable to controlling interest $ (10,489) $ (179)