Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill by Segment

The following table summarizes the changes in the carrying amount of goodwill for the years ended December 31, 2017 and 2016 (dollars in thousands):

										Global
							Asia			Investment			Development
	Americas			EMEA			Pacific			Management			Services			Total
Balance as of December 31, 2015
Goodwill	$	2,260,076		$	1,172,150		$	155,875		$	479,739		$	86,663		$	4,154,503
Accumulated impairment losses		(798,290	)		(138,631	)		—			(44,922	)		(86,663	)		(1,068,506	)
		1,461,786			1,033,519			155,875			434,817			—			3,085,997
Purchase accounting entries related to acquisitions		42,080			36,929			(3,922	)		350			—			75,437
Foreign exchange movement		773			(161,784	)		(1,247	)		(17,784	)		—			(180,042	)
Balance as of December 31, 2016
Goodwill		2,302,929			1,047,295			150,706			462,305			86,663			4,049,898
Accumulated impairment losses		(798,290	)		(138,631	)		—			(44,922	)		(86,663	)		(1,068,506	)
		1,504,639			908,664			150,706			417,383			—			2,981,392
Purchase accounting entries related to acquisitions		104,654			17,402			4,198			17,568			—			143,822
Foreign exchange movement		993			91,761			11,204			25,568			—			129,526
Balance as of December 31, 2017
Goodwill		2,408,576			1,156,458			166,108			505,441			86,663			4,323,246
Accumulated impairment losses		(798,290	)		(138,631	)		—			(44,922	)		(86,663	)		(1,068,506	)
	$	1,610,286		$	1,017,827		$	166,108		$	460,519		$	—		$	3,254,740

Schedule of Intangible Assets

Other intangible assets totaled $1.4 billion, net of accumulated amortization of $1.0 billion as of December 31, 2017, and $1.4 billion, net of accumulated amortization of $771.7 million, as of December 31, 2017 and 2016, respectively, and are comprised of the following (dollars in thousands):

	December 31,
	2017					2016
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
Unamortizable intangible assets
Management contracts	$	90,503				$	101,355
Trademarks		56,800					56,800
Trade names		16,250					18,100
	$	163,553				$	176,255
Amortizable intangible assets
Customer relationships	$	802,597	$	(355,642	)	$	761,290	$	(270,447	)
Mortgage servicing rights		608,757		(235,626	)		501,087		(180,563	)
Trademarks/Trade name		321,406		(64,866	)		306,559		(46,837	)
Management contracts		203,291		(122,450	)		177,014		(99,733	)
Covenant not to compete		73,750		(57,358	)		73,750		(32,777	)
Other		226,496		(164,796	)		186,757		(141,316	)
	$	2,236,297	$	(1,000,738	)	$	2,006,457	$	(771,673	)
Total intangible assets	$	2,399,850	$	(1,000,738	)	$	2,182,712	$	(771,673	)