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Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Cash used in operating activities | $ (41,372) | $ (36,583)
Cash flows from investing activities |  |
Purchase of office facilities | (1,762) | (474)
Cash used in investing activities | (1,762) | (474)
Cash flows from financing activities |  |
Cash dividends paid on Class A non-voting and Class B voting common stock | (1,476) | (1,511)
Repurchase of Class A non-voting common stock for cancellation | (3,634) | 0
Tax deficiency from share-based awards | (741) | (321)
Other financing activities | 48,100 | 42,000
Cash flow provided by (used in) financing activities | 42,249 | 40,168
Net increase (decrease) in cash and cash equivalents | (885) | 3,111
Cash and cash equivalents, beginning of period | 63,364 | 63,807
Cash and cash equivalents, end of period | 62,479 | 66,918
Class A Stock [Member] |  |
Cash flows from financing activities |  |
Repurchase of Class A non-voting common stock for cancellation | (3,634) |
Parent Company [Member] |  |
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Cash used in operating activities | 5,140 | 1,394
Cash flows from investing activities |  |
Purchase of office facilities | 0 | 0
Cash used in investing activities | 0 | 0
Cash flows from financing activities |  |
Cash dividends paid on Class A non-voting and Class B voting common stock | (1,476) | (1,511)
Tax deficiency from share-based awards | (741) | (321)
Other financing activities | 0 | 0
Cash flow provided by (used in) financing activities | (5,851) | (1,832)
Net increase (decrease) in cash and cash equivalents | (711) | (438)
Cash and cash equivalents, beginning of period | 907 | 439
Cash and cash equivalents, end of period | 196 | 1
Parent Company [Member] | Class A Stock [Member] |  |
Cash flows from financing activities |  |
Repurchase of Class A non-voting common stock for cancellation | (3,634) |
Guarantor Subsidiaries [Member] |  |
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Cash used in operating activities | (2,467) | 436
Cash flows from investing activities |  |
Purchase of office facilities | 0 | 0
Cash used in investing activities | 0 | 0
Cash flows from financing activities |  |
Cash dividends paid on Class A non-voting and Class B voting common stock | 0 | 0
Tax deficiency from share-based awards | 0 | 0
Other financing activities | 0 | 0
Cash flow provided by (used in) financing activities | 0 | 0
Net increase (decrease) in cash and cash equivalents | (2,467) | 436
Cash and cash equivalents, beginning of period | 2,586 | 1,557
Cash and cash equivalents, end of period | 119 | 1,993
Guarantor Subsidiaries [Member] | Class A Stock [Member] |  |
Cash flows from financing activities |  |
Repurchase of Class A non-voting common stock for cancellation | 0 |
Non-Guarantor Subsidiaries [Member] |  |
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Cash used in operating activities | (44,045) | (38,413)
Cash flows from investing activities |  |
Purchase of office facilities | (1,762) | (474)
Cash used in investing activities | (1,762) | (474)
Cash flows from financing activities |  |
Cash dividends paid on Class A non-voting and Class B voting common stock | 0 | 0
Tax deficiency from share-based awards | 0 | 0
Other financing activities | 48,100 | 42,000
Cash flow provided by (used in) financing activities | 48,100 | 42,000
Net increase (decrease) in cash and cash equivalents | 2,293 | 3,113
Cash and cash equivalents, beginning of period | 59,871 | 61,811
Cash and cash equivalents, end of period | 62,164 | 64,924
Non-Guarantor Subsidiaries [Member] | Class A Stock [Member] |  |
Cash flows from financing activities |  |
Repurchase of Class A non-voting common stock for cancellation | 0 |
Consolidation, Eliminations [Member] |  |
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Cash used in operating activities | 0 | 0
Cash flows from investing activities |  |
Purchase of office facilities | 0 | 0
Cash used in investing activities | 0 | 0
Cash flows from financing activities |  |
Cash dividends paid on Class A non-voting and Class B voting common stock | 0 | 0
Tax deficiency from share-based awards | 0 | 0
Other financing activities | 0 | 0
Cash flow provided by (used in) financing activities | 0 | 0
Net increase (decrease) in cash and cash equivalents | 0 | 0
Cash and cash equivalents, beginning of period | 0 | 0
Cash and cash equivalents, end of period | 0 | $ 0
Consolidation, Eliminations [Member] | Class A Stock [Member] |  |
Cash flows from financing activities |  |
Repurchase of Class A non-voting common stock for cancellation | $ 0 |

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