Schedule of Minimum EBITDA (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Six month period ending June 30, 2014
Schedule of Minimum EBITDA [Line Items]
Income (Loss) from continuing operations before income taxes, extraordinary items, noncontrolling interest, total	$ 1,123,000
Nine month period ending September 30, 2014
Schedule of Minimum EBITDA [Line Items]
Income (Loss) from continuing operations before income taxes, extraordinary items, noncontrolling interest, total	1,330,000
Twelve month period ending December 31, 2014
Schedule of Minimum EBITDA [Line Items]
Income (Loss) from continuing operations before income taxes, extraordinary items, noncontrolling interest, total	$ 802,000