Share-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 plan	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Reorganization and Reinvestment Initiatives	Dec. 31, 2011 Reorganization and Reinvestment Initiatives	Dec. 31, 2013 Stock Options	Dec. 31, 2013 Restricted Stock Units	Dec. 31, 2012 Restricted Stock Units	Dec. 31, 2011 Restricted Stock Units	Dec. 31, 2013 Phantom Stock Units	Dec. 31, 2012 Phantom Stock Units	Dec. 31, 2011 Phantom Stock Units	Dec. 31, 2013 Stock Appreciation Rights (SARs)	Dec. 31, 2012 Stock Appreciation Rights (SARs)	Dec. 31, 2011 Stock Appreciation Rights (SARs)	Dec. 31, 2011 Employee Stock Purchase Plan	Dec. 31, 2011 Executive Compensation Contracts	Dec. 31, 2010 Executive Compensation Contracts	Dec. 31, 2013 2004 Plan	Dec. 31, 2013 2004 Plan Maximum	Dec. 31, 2013 2013 Directors Plan	Dec. 31, 2013 2013 Directors Plan Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of plans	2
Share-based compensation arrangement, maximum number of shares that can be granted to a participant in any fiscal year																			2,000,000		50,000
Share based compensation arrangement, maximum number of shares issuable																				24,000,000		1,000,000
Vesting period						3 years	3 years			3 years			3 years
Expiration period						10 years
Compensation expense related to stock options	$ 1,839	$ 1,586	$ 3,306
Share based compensation, weighted average estimated forfeiture rate	6.60%	5.70%	4.50%
Weighted-average grant-date fair value of options granted	$ 2.47	$ 2.63	$ 2.94
Total unrecognized compensation expense related to non-vested shares granted						3,220	3,398
Unrecognized compensation expense expected recognition period						2 years	1 year 7 months 20 days
Total intrinsic value for options exercised	243	3
Exercise of stock options	1,652	19	0
Weighted average grant date fair value per share of PSUs granted							$ 6.55	$ 6.36	$ 7.01	$ 0.00	$ 6.37	$ 7.51	$ 0.00
Compensation expense related to restricted stock	1,694	1,556	1,799
Stock compensation expense	8,184	7,150	11,306	416	3,539					1,635	1,724	2,095	3,016	2,285	321	234	1,415
Accrued compensation expense										2,830	1,324		5,193	2,607
Accrued employee compensation and benefits	31,585	20,649								1,439			4,200	1,819
Long-term incentive compensation and other	5,555	7,131								1,391			993	788
Cost of closing price of Common stock			85.00%
Purchase of common stock on behalf of employees under employee stock purchase plan																376,000
Total value of share-based awards granted																		11,730
Additional compensation expense incurred as result of accelerated vesting period of equity awards granted under employment agreement																	$ 2,136