CONSOLIDATED STATEMENTS OF CASH FLOWS	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Cash flows (used in) provided by operating activities:
Net loss	$ (40,621,000)	$ (26,400,000)	$ (14,521,000)
Loss from discontinued operations	0	(6,281,000)	(21,260,000)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	(40,621,000)	(20,119,000)	6,739,000
Share-based Compensation	21,003,000	17,796,000	17,696,000
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities:
Depreciation	22,293,000	18,871,000	16,462,000
Amortization of intangibles	24,153,000	33,352,000	30,710,000
Amortization of deferred finance charges and debt discount	9,135,000	2,270,000	2,247,000
Goodwill, Impairment Loss	48,524,000	0	0
Loss on redemption of Notes	26,873,000	0	0
Adjustment to deferred acquisition consideration	8,227,000	38,887,000	18,652,000
Deferred income taxes	(10,038,000)	(79,000)	8,317,000
Earnings (losses) of non-consolidated affiliates	309,000	(1,058,000)	(1,406,000)
Distributions from non-consolidated affiliates	7,402,000	0	3,409,000
Other and non-current assets and liabilities	13,527,000	4,680,000	(7,805,000)
Foreign exchange	(8,240,000)	30,185,000	14,821,000
Changes in working capital:
Accounts receivable	(16,752,000)	(4,796,000)	(35,800,000)
Increase (Decrease) in Inventories	(13,048,000)	3,879,000	(23,351,000)
Prepaid expenses and other current assets	(13,608,000)	1,550,000	(1,949,000)
Accounts payable, accruals and other current liabilities	(110,018,000)	75,111,000	88,955,000
Increase (Decrease) in Deferred Revenue	11,397,000	(23,508,000)	(13,805,000)
Cash flows (used in) provided by continuing operating activities	(1,212,000)	162,737,000	167,185,000
Discontinued operations	0	(1,342,000)	(1,827,000)
Net cash (used in) provided by operating activities	(1,212,000)	161,395,000	165,358,000
Gain (Loss) on Disposition of Assets	(424,000)	(6,526,000)	0
Cash flows used in investing activities:
Capital expenditures	(29,432,000)	(23,575,000)	(26,416,000)
Increase (Decrease) in Deposit Assets	2,528,000	0	0
Payments for (Proceeds from) Investments	666,000	8,631,000	85,000
Acquisitions, net of cash acquired	2,531,000	(24,778,000)	(68,344,000)
Other investments	(3,835,000)	(7,272,000)	(6,312,000)
Cash flows used in continuing investing activities	(25,196,000)	(46,994,000)	(97,578,000)
Discontinued operations	0	17,101,000	(2,108,000)
Net cash used in investing activities	(25,196,000)	(29,893,000)	(99,686,000)
Cash flows used in financing activities:
Acquisition related payments	(135,693,000)	(134,056,000)	(78,322,000)
Distributions to noncontrolling interests	(7,772,000)	(9,503,000)	(6,523,000)
Payment of dividends	(32,918,000)	(42,313,000)	(37,698,000)
Repayment of long-term debt	(507,000)	(534,000)	(656,000)
Premium paid on redemption of Notes	(26,873,000)	0	0
Deferred financing costs	(21,569,000)	0	(3,659,000)
Purchase of shares	(3,350,000)	(2,388,000)	(5,414,000)
Other	0	224,000	112,000
Cash flows used in continuing financing activities	(9,257,000)	(188,570,000)	(53,223,000)
Discontinued operations	0	(40,000)	(40,000)
Net cash used in financing activities	(9,257,000)	(188,610,000)	(53,263,000)
Effect of exchange rate changes on cash and cash equivalents	2,128,000	5,218,000	(1,068,000)
(Decrease) increase in cash and cash equivalents	(33,537,000)	(51,890,000)	11,341,000
Cash and cash equivalents at beginning of year	61,458,000	113,348,000	102,007,000
Cash and cash equivalents at end of year	27,921,000	61,458,000	113,348,000
Supplemental disclosures:
Cash income taxes paid	2,895,000	1,887,000	431,000
Cash interest paid	64,671,000	52,666,000	49,253,000
Change in cash held in trusts	219,000	(1,297,000)	6,419,000
Non-cash transactions:
Capital leases	265,000	140,000	773,000
Notes Receivable in exchange for shares of subsidiary	0	0	1,746,000
Dividends Payable	739,000	912,000	1,347,000
Stock Issued During Period, Value, Acquisitions	34,219,000
Leasehold improvements financed by landlord	7,250,000	0	0
Six Point Five Zero Percentage Notes [Domain]
Cash flows used in financing activities:
Proceeds from issuance of notes	900,000,000	0	0
6.75% Notes
Cash flows used in financing activities:
Proceeds from issuance of notes	0	0	78,937,000
Repayment of 6.75% Notes	(735,000,000)	0	0
Wells Fargo Capital Finance, Llc [Member] | Revolving Credit Facility [Member]
Cash flows used in financing activities:
Repayments of Lines of Credit	(1,790,108,000)	(703,020,000)	(378,985,000)
Proceeds from Lines of Credit	1,844,533,000	703,020,000	378,985,000
Common Stock [Member] | Common Class A
Non-cash transactions:
Stock Issued During Period, Value, New Issues	10,458,000	0	0
Forsman & Bodenfors AB [Domain] | Common Stock [Member] | Common Class A
Non-cash transactions:
Stock Issued During Period, Value, Acquisitions	$ 34,219,000	$ 0	$ 0