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Supplemental Disclosure of Statement of Cash Flow Information (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Apr. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Condensed Cash Flow Statements, Captions [Line Items]      
Interest paid   $ 38,705 $ 44,641
Income taxes paid, net   1,278 855
LCIF [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Interest paid   7,578 15,483
Income taxes paid, net   $ 194 $ 58
Interests Sold [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Assumption of debt $ 29,193    
Interests Sold [Member] | LCIF [Member]      
Condensed Cash Flow Statements, Captions [Line Items]      
Assumption of debt $ 29,193