v3.7.0.1

Condensed Consolidating Financial Information - Guarantor Subsidiaries - Condensed Consolidating Statements of Cash Flows (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities | $ (7,949) | $ 799 | $ (7,949) | $ 799
Investing activities: |  |  |  |
Purchase of property and equipment | (43,892) | (39,908) | (43,892) | (39,908)
Proceeds from asset dispositions | 17 | 10,998 | 17 | 10,998
Purchase of short-term investments | (134,518) | (151,436) | (134,518) | (151,436)
Proceeds from sale of short-term investments | 187,217 | 148,838 | 187,217 | 148,838
Payments of deposits on aircraft | (110) | (131) | (110) | (131)
Net cash provided by (used in) investing activities | 8,714 | (31,639) | 8,714 | (31,639)
Financing activities: |  |  |  |
Proceeds from line of credit | 66,525 | 150,800 | 66,525 | 150,800
Payments on line of credit | (67,300) | (113,300) | (67,300) | (113,300)
Repurchase of common stock | (263) | (500) | (263) | (500)
Net cash (used in) provided by financing activities | (1,038) | 37,000 | (1,038) | 37,000
Increase (decrease) in cash | (273) | 6,160 | (273) | 6,160
Cash, beginning of period |  |  | 2,596 | 2,407
Cash, end of period | 2,323 | 8,567 | 2,323 | 8,567
Parent Company Only (issuer) [Member] |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities | (34,236) | (12,954) |  |
Investing activities: |  |  |  |
Purchase of property and equipment | (43,892) | (39,535) |  |
Proceeds from asset dispositions | 17 | 10,998 |  |
Purchase of short-term investments | (134,518) | (151,436) |  |
Proceeds from sale of short-term investments | 187,217 | 148,838 |  |
Payments of deposits on aircraft | (110) | (131) |  |
Net cash provided by (used in) investing activities | 8,714 | (31,266) |  |
Financing activities: |  |  |  |
Proceeds from line of credit | 66,525 | 150,800 |  |
Payments on line of credit | (67,300) | (113,300) |  |
Repurchase of common stock | (263) | (500) |  |
Due to/from affiliate, net | 26,572 | 7,214 |  |
Net cash (used in) provided by financing activities | 25,534 | 44,214 |  |
Increase (decrease) in cash | 12 | (6) |  |
Cash, beginning of period |  |  | 36 | 46
Cash, end of period | 48 | 40 | 48 | 40
Guarantor Subsidiaries [Member] |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities | 18,916 | 13,753 |  |
Investing activities: |  |  |  |
Purchase of property and equipment | 0 | (373) |  |
Net cash provided by (used in) investing activities | 0 | (373) |  |
Financing activities: |  |  |  |
Due to/from affiliate, net | (19,688) | (7,214) |  |
Net cash (used in) provided by financing activities | (19,688) | (7,214) |  |
Increase (decrease) in cash | (772) | 6,166 |  |
Cash, beginning of period |  |  | 2,100 | 2,361
Cash, end of period | 1,328 | $ 8,527 | 1,328 | $ 8,527
Non-Guarantor Subsidiaries [Member] |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash (used in) provided by operating activities | 7,371 |  |  |
Investing activities: |  |  |  |
Net cash provided by (used in) investing activities | 0 |  |  |
Financing activities: |  |  |  |
Due to/from affiliate, net | (6,884) |  |  |
Net cash (used in) provided by financing activities | (6,884) |  |  |
Increase (decrease) in cash | 487 |  |  |
Cash, beginning of period |  |  | 460 |
Cash, end of period | $ 947 |  | $ 947 |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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