Pensions and Postretirement Benefits Other than Pensions - Additional Information (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) Employee	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) Employee	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Expenses for Company's defined contribution plans			$ 13,260	$ 14,236	$ 12,510
Unrecognized prior service credit included in cumulative other comprehensive loss	$ (1,604)		(1,604)	(1,905)
Unrecognized prior service credit, Net of tax included in cumulative other comprehensive loss	(990)		(990)	(1,565)
Unrecognized actuarial losses included in cumulative other comprehensive loss	(534,060)		(534,060)	(569,639)
Defined benefit plan accumulated other comprehensive income net gains losses net of tax			(472,693)	(492,752)
Prior service credit expected to be recognized in next fiscal year			(566)
Actuarial loss expected to be recognized in next fiscal year			(42,337)
Accumulated benefit obligation exceeds plan assets, Projected benefit obligation	$ 1,459,809		$ 1,459,809	1,448,277
Accumulated benefit obligation				1,448,277
Number of former employees receiving lump sum offer | Employee	1,200		1,200
Defined benefit plan, benefit obligation	$ 1,463,026		$ 1,463,026	1,451,351	1,562,333
Defined benefit plan, settlements, vested benefit obligation		$ 42,000
Defined benefit plan, settlements, percent of obligation		4.00%
Benefits paid		$ 22,701	66,251	72,530
Defined benefit plans, settlements, percent of obligation reduction		2.00%
Non-cash settlement charge	$ 800	$ 11,462
Defined benefit plan, settlements, benefit obligation			$ 29,390	0
Weighted average assumed annual rate of increase in the cost of medical benefits	7.00%		7.00%
Weighted average assumed annual rate of increase in trending linearly cost	4.50%		4.50%
Fair market value of plan assets	$ 1,176,874		$ 1,176,874	1,146,430	1,188,673
Contributed domestic and foreign pension plans			46,075
Minimum
Defined Benefit Plan Disclosure [Line Items]
Range Company expects to contribute to its domestic and foreign pension plans			40,000
Maximum
Defined Benefit Plan Disclosure [Line Items]
Range Company expects to contribute to its domestic and foreign pension plans			50,000
German Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	1,700		1,700	1,784
Domestic
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, benefit obligation	1,040,498		1,040,498	1,045,467	1,105,100
Benefits paid			53,405	58,209
Defined benefit plan, settlements, benefit obligation			29,390	0
Fair market value of plan assets	848,341		848,341	836,514	$ 857,825
United Kingdom plan
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	326,833		326,833	308,132
Significant Unobservable Inputs Level (3) | Domestic
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	0		0	0
Significant Unobservable Inputs Level (3) | United Kingdom plan
Defined Benefit Plan Disclosure [Line Items]
Fair market value of plan assets	$ 33,796		$ 33,796	27,062
Reclassification of level 2 other investments to level 3				$ 24,269