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Condensed Consolidating Statement of Cash Flows (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by operating activities $ 91,491 $ 120,309
Net cash used in investing activities (19,330) (14,217)
Net cash used in financing activities (66,708) (116,567)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 5,453 (10,475)
CASH AND CASH EQUIVALENTS, beginning of period 37,711 65,291
CASH AND CASH EQUIVALENTS, end of period 43,164 54,816
Parent    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by operating activities 84,226 117,248
Net cash used in investing activities (13,642) (9,174)
Net cash used in financing activities (65,480) (113,751)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 5,104 (5,677)
CASH AND CASH EQUIVALENTS, beginning of period 11,378 15,666
CASH AND CASH EQUIVALENTS, end of period 16,482 9,989
Combined Subsidiary Guarantors    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided by operating activities 7,265 3,061
Net cash used in investing activities (5,688) (5,043)
Net cash used in financing activities (1,228) (2,816)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 349 (4,798)
CASH AND CASH EQUIVALENTS, beginning of period 26,333 49,625
CASH AND CASH EQUIVALENTS, end of period $ 26,682 $ 44,827