Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Common Stock Held In Employee Benefit & Compensation Trust [Member]
Balance (Predecessor [Member]) at Dec. 31, 2013	$ 1,320,749	$ 1,519	$ 1,820,451	$ (292,624)	$ 39,625	$ (247,190)	$ (1,032)
Balance, shares (Predecessor [Member]) at Dec. 31, 2013		151,929,565
Comprehensive income (loss):
Net income (loss) | Predecessor [Member]	(285,376)				(285,376)
Other comprehensive income:
Unrealized losses on securities, net of tax | Predecessor [Member]	(10,859)			(10,859)
Foreign currency translation adjustments | Predecessor [Member]	(33,041)			(33,041)
Total other comprehensive income (loss) | Predecessor [Member]	(43,900)			(43,900)
Stock-based compensation | Predecessor [Member]	5,614	$ 0	(1,765)			7,379
Stock-based compensation, shares | Predecessor [Member]		(322)
Common stock issued to savings and pension plan trusts | Predecessor [Member]	4,623	$ 6	4,381				236
Common stock issued to savings and pension plan trusts, shares | Predecessor [Member]		574,973
Sale of common stock under stock options | Predecessor [Member]	2,816	$ 3	2,813
Sale of common stock under stock options, shares | Predecessor [Member]		316,151
Balance (Predecessor [Member]) at Dec. 31, 2014	1,004,526	$ 1,528	1,825,880	(336,524)	(245,751)	(239,811)	(796)
Balance, shares (Predecessor [Member]) at Dec. 31, 2014		152,821,011.000
Comprehensive income (loss):
Net income (loss) | Predecessor [Member]	(120,649)				(120,649)
Net income (loss) | Successor [Member]	(120,649)
Other comprehensive income:
Unrealized losses on securities, net of tax | Predecessor [Member]	1,262			1,262
Foreign currency translation adjustments | Predecessor [Member]	(27,936)			(27,936)
Total other comprehensive income (loss) | Predecessor [Member]	(26,674)			(26,674)
Stock-based compensation | Predecessor [Member]	15,296		(16,530)			31,826
Stock-based compensation, shares | Predecessor [Member]		(2,331)
Common stock issued to savings and pension plan trusts | Predecessor [Member]	32	$ 0	32
Common stock issued to savings and pension plan trusts, shares | Predecessor [Member]		7,450
Brookfield preferred share issuance	(145,205)	$ 0	(145,205)	0	0	0	0
Shares issued in lieu of cash for incentive compensation | Predecessor [Member]	2,674	$ 4	1,874				796
Shares issued in lieu of cash for incentive compensation, shares | Predecessor [Member]		423,273
Balance (Predecessor [Member]) at Aug. 14, 2015	1,020,410	$ 1,532	1,956,461	(363,198)	(366,400)	(207,985)	0
Balance (Successor [Member]) at Aug. 14, 2015	0	$ 0	0	0	0	0	$ 0
Balance, shares (Predecessor [Member]) at Aug. 14, 2015		153,249,403.000
Balance, shares (Successor [Member]) at Aug. 14, 2015		0
Comprehensive income (loss):
Net income (loss) | Predecessor [Member]	(33,551)
Net income (loss) | Successor [Member]	(33,551)				(33,551)
Other comprehensive income:
Unrealized losses on securities, net of tax | Successor [Member]	(124)			(124)
Foreign currency translation adjustments | Successor [Member]	(10,133)			(10,133)
Total other comprehensive income (loss) | Successor [Member]	(10,257)			(10,257)
Brookfield capital contribution, shares | Successor [Member]		100
Brookfield capital contribution | Successor [Member]	854,337		854,337
Balance (Predecessor [Member]) at Dec. 31, 2015	810,529
Balance (Successor [Member]) at Dec. 31, 2015	810,529		854,337	(10,257)	(33,551)
Balance, shares (Successor [Member]) at Dec. 31, 2015		100.0
Comprehensive income (loss):
Net income (loss) | Predecessor [Member]	235,843
Net income (loss) | Successor [Member]	(235,843)
Net income (loss)	(235,843)
Other comprehensive income:
Unrealized losses on securities, net of tax | Successor [Member]	125			125
Foreign currency translation adjustments | Successor [Member]	2,574			2,574
Total other comprehensive income (loss) | Successor [Member]	2,699			2,699
Balance (Successor [Member]) at Dec. 31, 2016	$ 577,385	$ 0	$ 854,337	$ (7,558)	$ (269,394)	$ 0
Balance, shares (Successor [Member]) at Dec. 31, 2016		100