v3.6.0.2

Condensed Consolidating Financial Information - Guarantor Subsidiaries - Condensed Consolidating Statements of Cash Flows (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities |  | $ (564) | $ 133,918 | $ 119,519
Investing activities: |  |  |  |
Purchase of property and equipment |  | (81,842) | (57,123) | (157,690)
Proceeds from asset dispositions |  | 14,983 | 5,236 | 10,266
Purchase of short-term investments |  | (321,453) | (608,649) | (465,094)
Proceeds from sale of short-term investments |  | 316,543 | 505,966 | 363,110
Refund of deposits on aircraft |  |  | 6,010 | 11,506
Payments of deposits on aircraft |  | (2,249) | (1,273) | (6,948)
Loan to unconsolidated affiliate |  | (1,200) |  | (200)
Net cash used in investing activities |  | (75,218) | (149,833) | (245,050)
Financing activities: |  |  |  |
Proceeds from issuance of Senior Notes due 2019 |  |  |  | 500,000
Repayment of Senior Notes due 2018 |  |  |  | (300,000)
Premium and cost to retire debt early |  |  |  | (26,749)
Debt issuance costs |  |  |  | (6,232)
Proceeds from line of credit |  | 264,700 | 232,660 | 264,253
Payments on line of credit |  | (188,200) | (218,160) | (300,253)
Repurchase of common stock |  | (529) | (2,448) | (152)
Net cash provided by (used in) financing activities |  | 75,971 | 12,052 | 130,867
(Decrease) increase in cash |  | 189 | (3,863) | 5,336
Cash, beginning of year |  | 2,407 | 6,270 | 934
Cash, end of year |  | 2,596 | 2,407 | 6,270
Parent Company Only (issuer) [Member] |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities |  | (46,738) | 60,241 | 51,476
Investing activities: |  |  |  |
Purchase of property and equipment |  | (81,484) | (57,123) | (157,690)
Proceeds from asset dispositions |  | 14,983 | 5,236 | 10,266
Purchase of short-term investments |  | (321,453) | (608,649) | (465,094)
Proceeds from sale of short-term investments |  | 316,543 | 505,966 | 363,110
Refund of deposits on aircraft |  |  | 6,010 | 11,506
Payments of deposits on aircraft |  | (2,249) | (1,273) | (6,948)
Loan to unconsolidated affiliate |  | (1,200) |  | (200)
Net cash used in investing activities |  | (74,860) | (149,833) | (245,050)
Financing activities: |  |  |  |
Proceeds from issuance of Senior Notes due 2019 |  |  |  | 500,000
Repayment of Senior Notes due 2018 |  |  |  | (300,000)
Premium and cost to retire debt early |  |  |  | (26,749)
Debt issuance costs |  |  |  | (6,232)
Proceeds from line of credit |  | 264,700 | 232,660 | 264,253
Payments on line of credit |  | (188,200) | (218,160) | (300,253)
Repurchase of common stock |  | (529) | (2,448) | (152)
Due to/from affiliate, net |  | 45,617 | 77,535 | 62,706
Net cash provided by (used in) financing activities |  | 121,588 | 89,587 | 193,573
(Decrease) increase in cash |  | (10) | (5) | (1)
Cash, beginning of year |  | 46 | 51 | 52
Cash, end of year |  | 36 | 46 | 51
Guarantor Subsidiaries [Member] |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities | [1] | 46,174 | 73,677 | 68,043
Investing activities: |  |  |  |
Purchase of property and equipment | [1] | (358) |  |
Net cash used in investing activities | [1] | (358) |  |
Financing activities: |  |  |  |
Due to/from affiliate, net | [1] | (45,617) | (77,535) | (62,706)
Net cash provided by (used in) financing activities | [1] | (45,617) | (77,535) | (62,706)
(Decrease) increase in cash | [1] | 199 | (3,858) | 5,337
Cash, beginning of year | [1] | 2,361 | 6,219 | 882
Cash, end of year | [1] | $ 2,560 | $ 2,361 | $ 6,219
[1] | Foreign subsidiaries represent minor subsidiaries and are included in the guarantor subsidiaries' amounts.

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