Annual report pursuant to Section 13 and 15(d)

Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flows (Details)

v3.3.1.900
Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities $ 322,179 $ 409,873 $ 191,065
Net cash (used in) provided by investing activities (1,574,253) (1,136,657) (664,260)
Net cash provided by (used in) financing activities 1,222,708 410,168 765,063
Net (decrease) increase in cash and cash equivalents (29,366) (316,616) 291,868
Cash and cash equivalents at beginning of period 142,340 458,956 167,088
Cash and cash equivalents at end of period 112,974 142,340 458,956
Parent      
Condensed Financial Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities 344,018 388,177 182,961
Net cash (used in) provided by investing activities (1,595,767) (1,108,241) (661,886)
Net cash provided by (used in) financing activities 1,222,708 410,168 765,063
Net (decrease) increase in cash and cash equivalents (29,041) (309,896) 286,138
Cash and cash equivalents at beginning of period 141,535 451,431 165,293
Cash and cash equivalents at end of period 112,494 141,535 451,431
Guarantors      
Condensed Financial Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities (21,839) 21,698 8,104
Net cash (used in) provided by investing activities 21,514 (28,419) (2,374)
Net cash provided by (used in) financing activities 0 0 0
Net (decrease) increase in cash and cash equivalents (325) (6,721) 5,730
Cash and cash equivalents at beginning of period 804 7,525 1,795
Cash and cash equivalents at end of period 479 804 7,525
Non-Guarantor      
Condensed Financial Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities (2) (2) 0
Net cash (used in) provided by investing activities (14,472) (18,799) (33,929)
Net cash provided by (used in) financing activities 14,474 18,802 33,929
Net (decrease) increase in cash and cash equivalents 0 1 0
Cash and cash equivalents at beginning of period 1 0 0
Cash and cash equivalents at end of period 1 1 0
Eliminations      
Condensed Financial Statements, Captions [Line Items]      
Net cash provided by (used in) operating activities 2 0 0
Net cash (used in) provided by investing activities 14,472 18,802 33,929
Net cash provided by (used in) financing activities (14,474) (18,802) (33,929)
Net (decrease) increase in cash and cash equivalents 0 0 0
Cash and cash equivalents at beginning of period 0 0 0
Cash and cash equivalents at end of period $ 0 $ 0 $ 0